Instant Extended: Delete unused overlay code

chrome/browser/ui/cocoa/tab_contents/overlayable_contents_controller.mm

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/tab_contents/overlayable_contents_controller.h"
 
-#include "base/mac/bundle_locations.h"
-#include "chrome/browser/ui/cocoa/browser_window_controller.h"
 #include "chrome/browser/ui/cocoa/tab_contents/instant_overlay_controller_mac.h"
-#include "chrome/browser/ui/cocoa/tab_contents/overlay_separator_view.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 
 @interface OverlayableContentsController()
 - (void)viewDidResize:(NSNotification*)note;
 - (void)layoutViews;
 - (CGFloat)overlayHeightInPixels;
-- (BOOL)shouldShowTopSeparator;
 @end
 
 @implementation OverlayableContentsController
 
-@synthesize drawDropShadow = drawDropShadow_;
-@synthesize activeContainerOffset = activeContainerOffset_;
-@synthesize overlayContentsOffset = overlayContentsOffset_;
-
 - (id)initWithBrowser:(Browser*)browser
      windowController:(BrowserWindowController*)windowController {
   if ((self = [super init])) {
-    windowController_ = windowController;
     base::scoped_nsobject<NSView> view(
         [[NSView alloc] initWithFrame:NSZeroRect]);
     [view setAutoresizingMask:NSViewHeightSizable | NSViewWidthSizable];
-    [view setAutoresizesSubviews:NO];
     [[NSNotificationCenter defaultCenter]
         addObserver:self
            selector:@selector(viewDidResize:)
                name:NSViewFrameDidChangeNotification
              object:view];
     [self setView:view];
 
     activeContainer_.reset([[NSView alloc] initWithFrame:NSZeroRect]);
+    [activeContainer_ setAutoresizingMask:NSViewHeightSizable |
+                                          NSViewWidthSizable];
     [view addSubview:activeContainer_];
 
     instantOverlayController_.reset(
         new InstantOverlayControllerMac(browser, windowController, self));
-    topSeparatorView_.reset(
-        [[OverlayTopSeparatorView alloc] initWithFrame:NSZeroRect]);
-    [[self view] addSubview:topSeparatorView_];
   }
   return self;
 }
 
 - (void)dealloc {
   [[NSNotificationCenter defaultCenter] removeObserver:self];
   [super dealloc];
 }
 
 - (void)setOverlay:(content::WebContents*)overlay
             height:(CGFloat)height
        heightUnits:(InstantSizeUnits)heightUnits
     drawDropShadow:(BOOL)drawDropShadow {
-  // If drawing drop shadow, clip the bottom 1-px-thick separator out of
-  // overlay.
-  // TODO(sail): remove this when GWS gives chrome the height without the
-  // separator.
-  if (drawDropShadow && heightUnits != INSTANT_SIZE_PERCENT)
-    --height;
-
   if (overlayContents_ == overlay &&
       overlayHeight_ == height &&
-      overlayHeightUnits_ == heightUnits &&
-      drawDropShadow_ == drawDropShadow) {
+      overlayHeightUnits_ == heightUnits) {
     return;
   }
 
   // Remove any old overlay contents before showing the new one.
   if (overlayContents_) {
     if (overlayContents_ != overlay)
       overlayContents_->WasHidden();
     [overlayContents_->GetView()->GetNativeView() removeFromSuperview];
   }
 
   overlayContents_ = overlay;
   overlayHeight_ = height;
   overlayHeightUnits_ = heightUnits;
-  drawDropShadow_ = drawDropShadow;
 
   // Add the overlay contents.
   if (overlayContents_) {
     [[[self view] window] disableScreenUpdatesUntilFlush];
     [[self view] addSubview:overlayContents_->GetView()->GetNativeView()];
   }
 
-  if (drawDropShadow_) {
-    if (!dropShadowView_) {
-      dropShadowView_.reset(
-          [[OverlayBottomSeparatorView alloc] initWithFrame:NSZeroRect]);
-      [[self view] addSubview:dropShadowView_];
-    }
-  } else {
-    [dropShadowView_ removeFromSuperview];
-    dropShadowView_.reset();
-  }
-
   [self layoutViews];
 
   if (overlayContents_)
     overlayContents_->WasShown();
 }
 
 - (void)onActivateTabWithContents:(content::WebContents*)contents {
   if (overlayContents_ == contents) {
     if (overlayContents_) {
       [overlayContents_->GetView()->GetNativeView() removeFromSuperview];
       overlayContents_ = NULL;
     }
     [self setOverlay:NULL
               height:0
          heightUnits:INSTANT_SIZE_PIXELS
       drawDropShadow:NO];
   }
 }
 
+- (InstantOverlayControllerMac*)instantOverlayController {
+  return instantOverlayController_.get();
+}
+
 - (BOOL)isShowingOverlay {
   return overlayContents_ != nil;
 }
 
-- (InstantOverlayControllerMac*)instantOverlayController {
-  return instantOverlayController_.get();
-}
-
-- (void)activeContentsCompositingIOSurfaceCreated {
-  if (!overlayContents_)
-    return;
-
-  // If the active tab becomes composited the the overlay will no longer be
-  // visible. Workaround this by re-adding the overlay to the view hierarchy.
-  // See http://crbug.com/222122
-  [overlayContents_->GetView()->GetNativeView() removeFromSuperview];
-  [[self view] addSubview:overlayContents_->GetView()->GetNativeView()];
-}
-
 - (NSView*)activeContainer {
   return activeContainer_.get();
 }
 
-- (NSView*)dropShadowView {
-  return dropShadowView_.get();
-}
-
-- (void)setActiveContainerOffset:(CGFloat)activeContainerOffset {
-  if (activeContainerOffset_ == activeContainerOffset)
-    return;
-
-  activeContainerOffset_ = activeContainerOffset;
-  [self layoutViews];
-}
-
-- (void)setOverlayContentsOffset:(CGFloat)overlayContentsOffset {
-  if (overlayContentsOffset_ == overlayContentsOffset)
-    return;
-
-  overlayContentsOffset_ = overlayContentsOffset;
-  [self layoutViews];
-}
-
 - (void)viewDidResize:(NSNotification*)note {
   [self layoutViews];
 }
 
 - (void)layoutViews {
-  NSRect bounds = [[self view] bounds];
-
-  // Layout the separator at the top of the view.
-  NSRect separatorRect = bounds;
-  if ([self shouldShowTopSeparator])
-    separatorRect.size.height = [OverlayTopSeparatorView preferredHeight];
-  else
-    separatorRect.size.height = 0;
-  separatorRect.origin.y = NSMaxY(bounds) - NSHeight(separatorRect);
-  [topSeparatorView_ setFrame:separatorRect];
+  if (!overlayContents_)
+    return;
 
   // Layout the overlay.
-  if (overlayContents_) {
-    NSRect overlayFrame = bounds;
-    overlayFrame.size.height = [self overlayHeightInPixels];
-    overlayFrame.origin.y = NSMinY([topSeparatorView_ frame]) -
-                            NSHeight(overlayFrame) - overlayContentsOffset_;
-    [overlayContents_->GetView()->GetNativeView() setFrame:overlayFrame];
-
-    if (dropShadowView_) {
-      NSRect dropShadowFrame = bounds;
-      dropShadowFrame.size.height =
-          [OverlayBottomSeparatorView preferredHeight];
-      dropShadowFrame.origin.y =
-          NSMinY(overlayFrame) - NSHeight(dropShadowFrame);
-      [dropShadowView_ setFrame:dropShadowFrame];
-    }
-  }
-
-  // Layout the active tab contents.
-  NSRect activeFrame = bounds;
-  if (activeContainerOffset_)
-    activeFrame.size.height -= activeContainerOffset_;
-  else
-    activeFrame.size.height -= NSHeight([topSeparatorView_ frame]);
-  if (!NSEqualRects(activeFrame, [activeContainer_ frame])) {
-    [[activeContainer_ window] disableScreenUpdatesUntilFlush];
-    [activeContainer_ setFrame:activeFrame];
-  }
+  NSRect bounds = [[self view] bounds];
+  NSRect overlayFrame = bounds;
+  overlayFrame.size.height = [self overlayHeightInPixels];
+  overlayFrame.origin.y = NSMaxY(bounds) - NSHeight(overlayFrame);
+  [overlayContents_->GetView()->GetNativeView() setFrame:overlayFrame];
 }
 
 - (CGFloat)overlayHeightInPixels {
-  CGFloat height = NSHeight([[self view] bounds]) -
-                   NSHeight([topSeparatorView_ frame]) - overlayContentsOffset_;
+  CGFloat height = NSHeight([[self view] bounds]);
   switch (overlayHeightUnits_) {
     case INSTANT_SIZE_PERCENT:
       return std::min(height, (height * overlayHeight_) / 100);
     case INSTANT_SIZE_PIXELS:
       return std::min(height, overlayHeight_);
   }
 }
 
-- (BOOL)shouldShowTopSeparator {
-  // In presentation mode tab contents are flush with the top of the screen
-  // so there's no need for a separator.
-  if ([windowController_ inPresentationMode])
-    return NO;
-
-  if (![windowController_ hasToolbar])
-    return NO;
-
-  // Show a separator is the overlay or the tab contents will be shown right
-  // next to the omnibox.
-  return activeContainerOffset_ == 0 || overlayContents_;
-}
-
 @end