Set AllowOverlappingViews for history overlay

chrome/browser/ui/cocoa/browser_window_controller.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_
 
 // A class acting as the Objective-C controller for the Browser
 // object. Handles interactions between Cocoa and the cross-platform
 // code. Each window has a single toolbar and, by virtue of being a
@@ skipping 144 matching lines @@
   GURL fullscreenUrl_;
   FullscreenExitBubbleType fullscreenBubbleType_;
 
   // The Extension Command Registry used to determine which keyboard events to
   // handle.
   scoped_ptr<ExtensionKeybindingRegistryCocoa> extension_keybinding_registry_;
 
   // The offset between the bottom of the toolbar and web contents. This is used
   // to push the web contents below the bookmark bar.
   CGFloat toolbarToWebContentsOffset_;
+
+  // The number of history overlay views being shown.
+  NSUInteger historyOverlayCount_;
 }
 
 // A convenience class method which gets the |BrowserWindowController| for a
 // given window. This method returns nil if no window in the chain has a BWC.
 + (BrowserWindowController*)browserWindowControllerForWindow:(NSWindow*)window;
 
 // A convenience class method which gets the |BrowserWindowController| for a
 // given view.  This is the controller for the window containing |view|, if it
 // is a BWC, or the first controller in the parent-window chain that is a
 // BWC. This method returns nil if no window in the chain has a BWC.
@@ skipping 159 matching lines @@
 // Returns the frame, in Cocoa (unflipped) screen coordinates, of the area where
 // Instant results are.  If Instant is not showing, returns the frame of where
 // it would be.
 - (NSRect)instantFrame;
 
 // Called when the Add Search Engine dialog is closed.
 - (void)sheetDidEnd:(NSWindow*)sheet
          returnCode:(NSInteger)code
             context:(void*)context;
 
+// Updates the bookmark bar visibility based on the instant overlay state.
 - (void)updateBookmarkBarStateForInstantOverlay;
 
+// Called when the find bar visibility changes. This is used to update the
+// allowOverlappingViews state.
 - (void)onFindBarVisibilityChanged;
 
+// Called when a history overlay is shown. This is used to update the
+// allowOverlappingViews state.
+- (void)onHistoryOverlayShown;
+
+// Called when a history overlay is hidden. This is used to update the
+// allowOverlappingViews state.
+- (void)onHistoryOverlayHidden;
+
 @end  // @interface BrowserWindowController
 
 
 // Methods having to do with the window type (normal/popup/app, and whether the
 // window has various features; fullscreen and presentation mode methods are
 // separate).
 @interface BrowserWindowController(WindowType)
 
 // Determines whether this controller's window supports a given feature (i.e.,
 // whether a given feature is or can be shown in the window).
@@ skipping 127 matching lines @@
 // |source| rect doesn't fit into |target|.
 - (NSSize)overflowFrom:(NSRect)source
                     to:(NSRect)target;
 
 // The fullscreen exit bubble controller, or nil if the bubble isn't showing.
 - (FullscreenExitBubbleController*)fullscreenExitBubbleController;
 @end  // @interface BrowserWindowController (TestingAPI)
 
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_