OffscreenBrowserCompositorOutputSurface for Unified Desktop

content/browser/compositor/reflector_impl.h

 // Copyright 2014 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_COMPOSITOR_REFLECTOR_IMPL_H_
 #define CONTENT_BROWSER_COMPOSITOR_REFLECTOR_IMPL_H_
 
 #include "base/id_map.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/lock.h"
 #include "content/browser/compositor/image_transport_factory.h"
 #include "content/common/content_export.h"
 #include "gpu/command_buffer/common/mailbox_holder.h"
 #include "ui/compositor/reflector.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace base { class MessageLoopProxy; }
 
@@ skipping 20 matching lines @@
   ~ReflectorImpl() override;
 
   ui::Compositor* mirrored_compositor() { return mirrored_compositor_; }
 
   void Shutdown();
 
   void DetachFromOutputSurface();
 
   // ui::Reflector implementation.
   void OnMirroringCompositorResized() override;
+  void AddMirroringLayer(ui::Layer* layer) override;
+  void RemoveMirroringLayer(ui::Layer* layer) override;
 
   // Called in |BrowserCompositorOutputSurface::SwapBuffers| to copy
   // the full screen image to the |mailbox_| texture.
   void OnSourceSwapBuffers();
 
   // Called in |BrowserCompositorOutputSurface::PostSubBuffer| copy
   // the sub image given by |rect| to the |mailbox_| texture.
   void OnSourcePostSubBuffer(const gfx::Rect& rect);
 
   // Called when the source surface is bound and available.
   void OnSourceSurfaceReady(BrowserCompositorOutputSurface* surface);
 
  private:
-  void UpdateTexture(const gfx::Size& size, const gfx::Rect& redraw_rect);
+  struct LayerData;
+
+  ScopedVector<ReflectorImpl::LayerData>::iterator FindLayerData(
+      ui::Layer* layer);
+  void UpdateTexture(LayerData* layer_data,
+                     const gfx::Size& size,
+                     const gfx::Rect& redraw_rect);
 
   ui::Compositor* mirrored_compositor_;
-  ui::Layer* mirroring_layer_;
+  ScopedVector<LayerData> mirroring_layers_;
   scoped_refptr<OwnedMailbox> mailbox_;
   scoped_ptr<GLHelper> mirrored_compositor_gl_helper_;
   int mirrored_compositor_gl_helper_texture_id_;
-  bool needs_set_mailbox_;
   bool flip_texture_;
   BrowserCompositorOutputSurface* output_surface_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_REFLECTOR_IMPL_H_