Instant Extended: Delete unused overlay code

chrome/browser/ui/cocoa/browser_window_controller_private.mm

Index: chrome/browser/ui/cocoa/browser_window_controller_private.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_controller_private.mm b/chrome/browser/ui/cocoa/browser_window_controller_private.mm
index 5511c6a0ca62815bf1e9965f401bd8918f58e834..53a84aaa2f96d4cbd5b409ae34747c3570a5c060 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller_private.mm
+++ b/chrome/browser/ui/cocoa/browser_window_controller_private.mm
@@ -13,7 +13,6 @@
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_info_util.h"
-#include "chrome/browser/search/search.h"
 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window_state.h"
@@ -34,8 +33,6 @@
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_view.h"
 #import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
 #include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
-#include "chrome/browser/ui/search/search_model.h"
-#include "chrome/browser/ui/search/search_ui.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
@@ -214,7 +211,6 @@ willPositionSheet:(NSWindow*)sheet
   DCHECK_LE(maxY, NSMaxY(contentBounds) + yOffset);
 
   // Place the toolbar at the top of the reserved area.
-  CGFloat toolbarTopY = maxY;
   maxY = [self layoutToolbarAtMinX:minX maxY:maxY width:width];
 
   // If we're not displaying the bookmark bar below the info bar, then it goes
@@ -222,7 +218,6 @@ willPositionSheet:(NSWindow*)sheet
   BOOL placeBookmarkBarBelowInfoBar = [self placeBookmarkBarBelowInfoBar];
   if (!placeBookmarkBarBelowInfoBar)
     maxY = [self layoutBookmarkBarAtMinX:minX maxY:maxY width:width];
-  CGFloat toolbarBottomY = maxY;
 
   // The floating bar backing view doesn't actually add any height.
   NSRect floatingBarBackingRect =
@@ -230,8 +225,11 @@ willPositionSheet:(NSWindow*)sheet
   [self layoutFloatingBarBackingView:floatingBarBackingRect
                     presentationMode:inPresentationMode];
 
-  [fullscreenExitBubbleController_ positionInWindowAtTop:toolbarBottomY
-                                                   width:width];
+  // Place the find bar immediately below the toolbar/attached bookmark bar. In
+  // presentation mode, it hangs off the top of the screen when the bar is
+  // hidden.
+  [findBarCocoaController_ positionFindBarViewAtMaxY:maxY maxWidth:width];
+  [fullscreenExitBubbleController_ positionInWindowAtTop:maxY width:width];
 
   // If in presentation mode, reset |maxY| to top of screen, so that the
   // floating bar slides over the things which appear to be in the content area.
@@ -242,55 +240,15 @@ willPositionSheet:(NSWindow*)sheet
   // presentation mode in which case it's at the top of the visual content area.
   maxY = [self layoutInfoBarAtMinX:minX maxY:maxY width:width];
 
-  // Place the download shelf, if any, at the bottom of the view.
-  minY = [self layoutDownloadShelfAtMinX:minX minY:minY width:width];
-
-  // Place the bookmark bar.
+  // If the bookmark bar is detached, place it next in the visual content area.
   if (placeBookmarkBarBelowInfoBar)
     maxY = [self layoutBookmarkBarAtMinX:minX maxY:maxY width:width];
 
-  // In presentation mode the content area takes up all the remaining space
-  // (from the bottom of the info bar down). In normal mode the content area
-  // takes up the space between the bottom of the toolbar down.
-  CGFloat contentAreaTop = 0;
-  if (inPresentationMode) {
-    // The tabContentaArea starts at the bottom of the info bar (or top of the
-    // screen if there's no info bar).
-    contentAreaTop = maxY;
-    CGFloat floatingBarHeight =
-        NSHeight(floatingBarBackingRect) * [self floatingBarShownFraction];
-    // When an instant overlay is shown this is the amount it needs to be pushed
-    // down so that it doesn't get covered by the floating toolbar.
-    toolbarToWebContentsOffset_ =
-        floatingBarHeight - (NSMaxY(contentBounds) - maxY);
-  } else {
-    // The tabContentArea view starts below the omnibox.
-    CGFloat minToolbarHeight = 0;
-    if ([self hasToolbar]) {
-      // 1 to account for the toolbar separator.
-      minToolbarHeight = [toolbarController_ desiredHeightForCompression:1];
-    }
-    contentAreaTop = toolbarTopY - minToolbarHeight;
-    // This is the space between the bottom of the omnibox and the bottom of the
-    // last bar (info bar or bookmark bar or toolbar). This is used to push the
-    // tab web content down when no instant overlay is shown.
-    toolbarToWebContentsOffset_ = contentAreaTop - maxY;
-  }
-  [self updateContentOffsets];
-
-  // Place the find bar immediately below the toolbar/attached bookmark bar. In
-  // presentation mode, it hangs off the top of the screen when the bar is
-  // hidden.
-  if ([self currentInstantUIState] ==
-      browser_window_controller::kInstantUIFullPageResults) {
-    [findBarCocoaController_ positionFindBarViewAtMaxY:contentAreaTop - 1
-                                              maxWidth:width];
-  } else {
-    [findBarCocoaController_ positionFindBarViewAtMaxY:toolbarBottomY
-                                              maxWidth:width];
-  }
+  // Place the download shelf, if any, at the bottom of the view.
+  minY = [self layoutDownloadShelfAtMinX:minX minY:minY width:width];
 
-  NSRect contentAreaRect = NSMakeRect(minX, minY, width, contentAreaTop - minY);
+  // Finally, the content area takes up all of the remaining space.
+  NSRect contentAreaRect = NSMakeRect(minX, minY, width, maxY - minY);
   [self layoutTabContentArea:contentAreaRect];
 
   // Normally, we don't need to tell the toolbar whether or not to show the
@@ -884,71 +842,6 @@ willPositionSheet:(NSWindow*)sheet
   return [bookmarkBarController_ toolbarDividerOpacity];
 }
 
-- (browser_window_controller::InstantUIState)currentInstantUIState {
-  if (!browser_->search_model()->mode().is_search())
-    return browser_window_controller::kInstantUINone;
-
-  // If the search suggestions are already being displayed in the overlay
-  // contents then return kInstantUIOverlay.
-  if ([overlayableContentsController_ isShowingOverlay])
-    return browser_window_controller::kInstantUIOverlay;
-
-  if (browser_->search_model()->top_bars_visible())
-    return browser_window_controller::kInstantUINone;
-
-  return browser_window_controller::kInstantUIFullPageResults;
-}
-
-- (void)updateContentOffsets {
-  if ([self inPresentationMode]) {
-    // In presentation mode the tabContentArea starts at the bottom of the info
-    // bar (or top of the screen if there's no info bar).
-    if ([self currentInstantUIState] !=
-        browser_window_controller::kInstantUIFullPageResults) {
-      // Normal mode, keep the tab web contents at the top (below the info bar).
-      [overlayableContentsController_ setActiveContainerOffset:0];
-    } else {
-      // Instant suggestions are displayed in the main tab contents so push that
-      // down so that the floating toolbar doesn't obscure it.
-      [overlayableContentsController_
-          setActiveContainerOffset:toolbarToWebContentsOffset_];
-    }
-    // Floating overlay (if any) should also be below the floating toolbar.
-    [overlayableContentsController_
-        setOverlayContentsOffset:toolbarToWebContentsOffset_];
-
-    [[self tabContentArea] setContentOffset:0];
-    [devToolsController_ setTopContentOffset:0];
-  } else {
-    // In normal mode the tabContentArea starts just below the omnibox and the
-    // bookmark bar and info bar overlap it.
-    if ([self currentInstantUIState] !=
-        browser_window_controller::kInstantUIFullPageResults) {
-      // Normal mode, push the tab web contents down so that it doesn't obscure
-      // the bookmark bar and info bar.
-      [overlayableContentsController_
-          setActiveContainerOffset:toolbarToWebContentsOffset_];
-    } else {
-      // Instant suggestions are displayed in the main tab contents so don't
-      // push it down (keep it next to the omnibox).
-      [overlayableContentsController_ setActiveContainerOffset:0];
-    }
-    // Floating overlay (if any) should also be at the top (next to the
-    // omnibox).
-    [overlayableContentsController_ setOverlayContentsOffset:0];
-
-    // Prevent the fast resize view from drawing white over the bookmark bar.
-    [[self tabContentArea] setContentOffset:toolbarToWebContentsOffset_];
-    // Prevent the dev tools splitter from overlapping the bookmark bar.
-    if ([self currentInstantUIState] !=
-        browser_window_controller::kInstantUINone) {
-      [devToolsController_ setTopContentOffset:0];
-    } else {
-      [devToolsController_ setTopContentOffset:toolbarToWebContentsOffset_];
-    }
-  }
-}
-
 - (void)updateSubviewZOrder:(BOOL)inPresentationMode {
   NSView* contentView = [[self window] contentView];
   NSView* toolbarView = [toolbarController_ view];
@@ -960,17 +853,14 @@ willPositionSheet:(NSWindow*)sheet
                      isPositioned:NSWindowAbove
                        relativeTo:[self tabContentArea]];
   } else {
-    // Toolbar is below tab contents so that the infob ar arrow can appear above
-    // it.  Unlike other views the toolbar never overlaps the actual web
-    // content.
+    // Toolbar is below tab contents so that the info bar arrow can appear above
+    // it.
     [contentView cr_ensureSubview:toolbarView
                      isPositioned:NSWindowBelow
                        relativeTo:[self tabContentArea]];
   }
 
-  // The bookmark bar is always below the toolbar. In normal mode this means
-  // that it is below tab contents. This allows Instant results to be above
-  // the bookmark bar.
+  // The bookmark bar is always below the toolbar.
   [contentView cr_ensureSubview:[bookmarkBarController_ view]
                    isPositioned:NSWindowBelow
                      relativeTo:toolbarView];
@@ -988,17 +878,13 @@ willPositionSheet:(NSWindow*)sheet
                        relativeTo:toolbarView];
   }
 
-  // The find bar is above everything except Instant search results.
+  // The find bar is above everything.
   if (findBarCocoaController_) {
     NSView* relativeView = nil;
-    if (inPresentationMode) {
+    if (inPresentationMode)
       relativeView = toolbarView;
-    } else if ([self currentInstantUIState] ==
-               browser_window_controller::kInstantUIOverlay) {
-      relativeView = [infoBarContainerController_ view];
-    } else {
+    else
       relativeView = [self tabContentArea];
-    }
     [contentView cr_ensureSubview:[findBarCocoaController_ view]
                      isPositioned:NSWindowAbove
                        relativeTo:relativeView];
@@ -1060,12 +946,9 @@ willPositionSheet:(NSWindow*)sheet
 }
 
 - (void)updateInfoBarTipVisibility {
-  // If the overlay is open or if there's no toolbar then hide the infobar tip.
-  BOOL suppressInfoBarTip =
-      [self currentInstantUIState] !=
-      browser_window_controller::kInstantUINone || ![self hasToolbar];
+  // If there's no toolbar then hide the infobar tip.
   [infoBarContainerController_
-      setShouldSuppressTopInfoBarTip:suppressInfoBarTip];
+      setShouldSuppressTopInfoBarTip:![self hasToolbar]];
 }
 
 - (browser_window_controller::CoreAnimationStatus)coreAnimationStatus {