Support vulkan surface formats for Android.

gpu/vulkan/vulkan_surface.h

 // Copyright (c) 2016 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 GPU_VULKAN_VULKAN_SURFACE_H_
 #define GPU_VULKAN_VULKAN_SURFACE_H_
 
 #include <memory>
 
 #include "gpu/vulkan/vulkan_export.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/swap_result.h"
 
 namespace gpu {
 
 class VulkanDeviceQueue;
 class VulkanSwapChain;
 
 class VULKAN_EXPORT VulkanSurface {
  public:
   // Minimum bit depth of surface.
   enum Format {
-    FORMAT_BGRA8888,
-    FORMAT_RGB565,
+    FORMAT_RGBA_32,
+    FORMAT_RGB_16,
 
     NUM_SURFACE_FORMATS,
-    DEFAULT_SURFACE_FORMAT = FORMAT_BGRA8888
+    DEFAULT_SURFACE_FORMAT = FORMAT_RGBA_32
   };
 
   virtual ~VulkanSurface() = 0;
 
   virtual bool Initialize(VulkanDeviceQueue* device_queue,
                           VulkanSurface::Format format) = 0;
   virtual void Destroy() = 0;
 
   virtual gfx::SwapResult SwapBuffers() = 0;
 
   virtual VulkanSwapChain* GetSwapChain() = 0;
 
   virtual void Finish() = 0;
 
   // Create a surface that render directlys into a surface.
   static std::unique_ptr<VulkanSurface> CreateViewSurface(
       gfx::AcceleratedWidget window);
 
  protected:
   VulkanSurface();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(VulkanSurface);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_VULKAN_VULKAN_SURFACE_H_