Temporary fix for "white patch" fullscreen regression on OSX

chrome/browser/ui/cocoa/tab_contents/tab_contents_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_TAB_CONTENTS_TAB_CONTENTS_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_TAB_CONTENTS_CONTROLLER_H_
 
 #include <Cocoa/Cocoa.h>
 
 #include <memory>
@@ skipping 23 matching lines @@
 @interface TabContentsController : NSViewController {
  @private
    content::WebContents* contents_;  // weak
    // When |fullscreenObserver_| is not-NULL, TabContentsController monitors for
    // and auto-embeds fullscreen widgets as a subview.
    std::unique_ptr<FullscreenObserver> fullscreenObserver_;
    // Set to true while TabContentsController is embedding a fullscreen widget
    // view as a subview instead of the normal WebContentsView render view.
    // Note: This will be false in the case of non-Flash fullscreen.
    BOOL isEmbeddingFullscreenWidget_;
+
+   // Set to true if the window is a popup.
+   BOOL isPopup_;
 }
 @property(readonly, nonatomic) content::WebContents* webContents;
 
 // This flag is set to true when we don't want the fullscreen widget to
 // resize. This is done so that we can avoid resizing the fullscreen widget
 // to intermediate sizes during the fullscreen transition.
 // As a result, we would prevent janky movements during the transition and
 // Pepper Fullscreen from blowing up.
 @property(assign, nonatomic) BOOL blockFullscreenResize;
 
 // Create the contents of a tab represented by |contents|.
-- (id)initWithContents:(content::WebContents*)contents;
+- (id)initWithContents:(content::WebContents*)contents isPopup:(BOOL)popup;
 
 // Call when the container view owned by TabContentsController is about to be
 // resized and inserted into the view hierarchy, so as to not trigger
 // unnecessary content re-layout.
 - (void)ensureContentsSizeDoesNotChange;
 
 // Call after the container view is inserted into the view hierarchy and
 // properly sized. Then, this method will select either the WebContents view or
 // the fullscreen view and swap it into the view hierarchy for display.
 - (void)ensureContentsVisible;
@@ skipping 21 matching lines @@
 // an entirely new tab contents object.
 - (void)tabDidChange:(content::WebContents*)updatedContents;
 
 // Called to switch the container's subview to the WebContents-owned fullscreen
 // widget or back to WebContentsView's widget.
 - (void)toggleFullscreenWidget:(BOOL)enterFullscreen;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_TAB_CONTENTS_CONTROLLER_H_