[Mac] Replace SetOverlayView with AllowOtherViews.

content/browser/renderer_host/render_widget_host_view_mac.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <IOSurface/IOSurfaceAPI.h>
 #include <list>
@@ skipping 217 matching lines @@
   virtual ~RenderWidgetHostViewMac();
 
   RenderWidgetHostViewCocoa* cocoa_view() const { return cocoa_view_; }
 
   // |delegate| is used to separate out the logic from the NSResponder delegate.
   // |delegate| is retained by this class.
   // |delegate| should be set at most once.
   CONTENT_EXPORT void SetDelegate(
     NSObject<RenderWidgetHostViewMacDelegate>* delegate);
   void SetAllowOverlappingViews(bool overlapping);
+  void SetAllowPauseForResizeOrRepaint(bool allow);
 
   // RenderWidgetHostView implementation.
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
   virtual void InitAsChild(gfx::NativeView parent_view) OVERRIDE;
   virtual RenderWidgetHost* GetRenderWidgetHost() const OVERRIDE;
   virtual void SetSize(const gfx::Size& size) OVERRIDE;
   virtual void SetBounds(const gfx::Rect& rect) OVERRIDE;
   virtual gfx::NativeView GetNativeView() const OVERRIDE;
   virtual gfx::NativeViewId GetNativeViewId() const OVERRIDE;
   virtual gfx::NativeViewAccessible GetNativeViewAccessible() OVERRIDE;
@@ skipping 117 matching lines @@
   // |cocoa_view_|.
   void CompositorSwapBuffers(IOSurfaceID surface_handle,
                              const gfx::Size& size,
                              float scale_factor,
                              const std::vector<ui::LatencyInfo>& latency_info);
 
   // Called when a GPU error is detected. Posts a task to destroy all
   // compositing state.
   void GotAcceleratedCompositingError();
 
-  // Sets the overlay view, which should be drawn in the same IOSurface
-  // atop of this view, if both views are drawing accelerated content.
-  // Overlay is stored as a weak ptr.
-  void SetOverlayView(RenderWidgetHostViewMac* overlay,
-                      const gfx::Point& offset);
-
-  // Removes the previously set overlay view.
-  void RemoveOverlayView();
-
   // Returns true and stores first rectangle for character range if the
   // requested |range| is already cached, otherwise returns false.
   // Exposed for testing.
   CONTENT_EXPORT bool GetCachedFirstRectForCharacterRange(
       NSRange range, NSRect* rect, NSRange* actual_range);
 
   // Returns true if there is line break in |range| and stores line breaking
   // point to |line_breaking_point|. The |line_break_point| is valid only if
   // this function returns true.
   bool GetLineBreakIndex(const std::vector<gfx::Rect>& bounds,
@@ skipping 192 matching lines @@
   // destructor.
   RenderWidgetHostViewCocoa* cocoa_view_;
 
   // Indicates if the page is loading.
   bool is_loading_;
 
   // Indicates if the view is currently stalled waiting for a new frame to come
   // in.
   bool is_paused_for_resize_or_repaint_;
 
+  // Whether it's allowed to pause waiting for a new frame.
+  bool allow_pause_for_resize_or_repaint_;
+
   // The text to be shown in the tooltip, supplied by the renderer.
   base::string16 tooltip_text_;
 
   // Factory used to safely scope delayed calls to ShutdownHost().
   base::WeakPtrFactory<RenderWidgetHostViewMac> weak_factory_;
 
   // selected text on the renderer.
   std::string selected_text_;
 
   // The window used for popup widgets.
   base::scoped_nsobject<NSWindow> popup_window_;
 
   // The fullscreen window used for pepper flash.
   base::scoped_nsobject<NSWindow> pepper_fullscreen_window_;
   base::scoped_nsobject<FullscreenWindowManager> fullscreen_window_manager_;
   // Our parent host view, if this is fullscreen.  NULL otherwise.
   RenderWidgetHostViewMac* fullscreen_parent_host_view_;
 
-  // The overlay view which is rendered above this one in the same
-  // accelerated IOSurface.
-  // Overlay view has |underlay_view_| set to this view.
-  base::WeakPtr<RenderWidgetHostViewMac> overlay_view_;
-
-  // The underlay view which this view is rendered above in the same
-  // accelerated IOSurface.
-  // Underlay view has |overlay_view_| set to this view.
-  base::WeakPtr<RenderWidgetHostViewMac> underlay_view_;
-
-  // Factory used to safely reference overlay view set in SetOverlayView.
-  base::WeakPtrFactory<RenderWidgetHostViewMac>
-      overlay_view_weak_factory_;
-
   // Display link for getting vsync info.
   scoped_refptr<DisplayLinkMac> display_link_;
 
   // The current composition character range and its bounds.
   gfx::Range composition_range_;
   std::vector<gfx::Rect> composition_bounds_;
 
   // The current caret bounds.
   gfx::Rect caret_rect_;
 
   // Subscriber that listens to frame presentation events.
   scoped_ptr<RenderWidgetHostViewFrameSubscriber> frame_subscriber_;
 
   base::WeakPtrFactory<RenderWidgetHostViewMac>
       software_frame_weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewMac);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_