Prevent recursive calls to globalFrameDidChange.

content/browser/renderer_host/accelerated_plugin_view_mac.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_ACCELERATED_PLUGIN_VIEW_MAC_H
 #define CONTENT_BROWSER_RENDERER_HOST_ACCELERATED_PLUGIN_VIEW_MAC_H
 
 #import <Cocoa/Cocoa.h>
 #include <QuartzCore/QuartzCore.h>
 
@@ skipping 15 matching lines @@
   scoped_nsobject<NSOpenGLPixelFormat> glPixelFormat_;
   CGLPixelFormatObj cglPixelFormat_;  // weak, backed by |glPixelFormat_|.
   scoped_nsobject<NSOpenGLContext> glContext_;
   CGLContextObj cglContext_;  // weak, backed by |glContext_|.
 
   RenderWidgetHostViewMac* renderWidgetHostView_;  // weak
   gfx::PluginWindowHandle pluginHandle_;  // weak
 
   // Rects that should show web content rather than plugin content.
   scoped_nsobject<NSArray> cutoutRects_;
+
+  BOOL handlingGlobalFrameDidChange_;
 }
 
 - (id)initWithRenderWidgetHostViewMac:(RenderWidgetHostViewMac*)r
                          pluginHandle:(gfx::PluginWindowHandle)pluginHandle;
 
 // Sets the list of rectangles that should show the web page, rather than the
 // accelerated plugin. This is used to simulate the iframe-based trick that web
 // pages have long used to show web content above windowed plugins on Windows
 // and Linux.
 - (void)setCutoutRects:(NSArray*)cutout_rects;
 
 // NSViews autorelease subviews when they die. The RWHVMac gets destroyed when
 // RHWVCocoa gets dealloc'd, which means the AcceleratedPluginView child views
 // can be around a little longer than the RWHVMac. This is called when the
 // RWHVMac is about to be deleted (but it's still valid while this method runs).
 - (void)onRenderWidgetHostViewGone;
 
 // Draw the view from the UI thread.
 - (void)drawView;
 
 @end
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_ACCELERATED_PLUGIN_VIEW_MAC_H