Add support to send optimal format as part of ScheduleOverlayPlane

content/common/gpu/image_transport_surface_overlay_mac.h

 // Copyright 2015 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_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_OVERLAY_MAC_H_
 #define CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_OVERLAY_MAC_H_
 
 #include <list>
 #include <vector>
 
@@ skipping 25 matching lines @@
   bool IsOffscreen() override;
   gfx::SwapResult SwapBuffers() override;
   gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;
   bool SupportsPostSubBuffer() override;
   gfx::Size GetSize() override;
   void* GetHandle() override;
   bool OnMakeCurrent(gfx::GLContext* context) override;
   bool SetBackbufferAllocation(bool allocated) override;
   bool ScheduleOverlayPlane(int z_order,
                             gfx::OverlayTransform transform,
+                            gfx::BufferFormat storage_format,
                             gl::GLImage* image,
                             const gfx::Rect& bounds_rect,
-                            const gfx::RectF& crop_rect) override;
+                            const gfx::RectF& crop_rect,
+                            bool handle_scaling) override;
   bool ScheduleCALayer(gl::GLImage* contents_image,
                        const gfx::RectF& contents_rect,
                        float opacity,
                        unsigned background_color,
                        const gfx::SizeF& bounds_size,
                        const gfx::Transform& transform) override;
   bool IsSurfaceless() const override;
 
   // ImageTransportSurface implementation
   void OnBufferPresented(
@@ skipping 84 matching lines @@
   // swap and increments with each call to ScheduleCALayer.
   int next_ca_layer_z_order_;
 
   base::Timer display_pending_swap_timer_;
   base::WeakPtrFactory<ImageTransportSurfaceOverlayMac> weak_factory_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_OVERLAY_MAC_H_