gpu: Compositor management of GpuMemoryBuffer instances.

ui/gl/gl_image_memory.h

Index: ui/gl/gl_image_memory.h
diff --git a/ui/gl/gl_image_memory.h b/ui/gl/gl_image_memory.h
index 6dbec46bfe55ca894757ee296b756662021b0962..24b42d38b460f68e9e37c30b6a16d6d51da5ca53 100644
--- a/ui/gl/gl_image_memory.h
+++ b/ui/gl/gl_image_memory.h
@@ -13,13 +13,16 @@
 #include <EGL/eglext.h>
 #endif
 
+#include "ui/gfx/gpu_memory_buffer.h"
+
 namespace gfx {
 
 class GL_EXPORT GLImageMemory : public GLImage {
  public:
   GLImageMemory(const gfx::Size& size, unsigned internalformat);
 
-  bool Initialize(const unsigned char* memory);
+  bool Initialize(const unsigned char* memory,
+                  gfx::GpuMemoryBuffer::Format format);
 
   // Overridden from GLImage:
   virtual void Destroy(bool have_context) OVERRIDE;
@@ -40,15 +43,15 @@ class GL_EXPORT GLImageMemory : public GLImage {
  protected:
   virtual ~GLImageMemory();
 
-  bool HasValidFormat() const;
-  size_t Bytes() const;
+  static size_t BytesPerPixel(gfx::GpuMemoryBuffer::Format format);
 
  private:
   void DoBindTexImage(unsigned target);
 
-  const unsigned char* memory_;
   const gfx::Size size_;
   const unsigned internalformat_;
+  const unsigned char* memory_;
+  gfx::GpuMemoryBuffer::Format format_;
   bool in_use_;
   unsigned target_;
   bool need_do_bind_tex_image_;