gpu: Add CHROMIUM_texture_from_image spec and fence support.

ui/gl/gl_image.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 UI_GL_GL_IMAGE_H_
 #define UI_GL_GL_IMAGE_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/overlay_transform.h"
 #include "ui/gl/gl_export.h"
 
 namespace base {
 namespace trace_event {
 class ProcessMemoryDump;
 }
 }
 
 namespace gl {
+class GLFence;
 
 // Encapsulates an image that can be bound and/or copied to a texture, hiding
 // platform specific management.
 class GL_EXPORT GLImage : public base::RefCounted<GLImage> {
  public:
   GLImage() {}
 
   // Get the size of the image.
   virtual gfx::Size GetSize() = 0;
 
   // Get the internal format of the image.
   virtual unsigned GetInternalFormat() = 0;
 
   // Bind image to texture currently bound to |target|. Returns true on success.
   // It is valid for an implementation to always return false.
-  virtual bool BindTexImage(unsigned target) = 0;
+  virtual bool BindTexImage(unsigned target, GLFence* fence) = 0;
 
   // Release image from texture currently bound to |target|.
   virtual void ReleaseTexImage(unsigned target) = 0;
 
   // Define texture currently bound to |target| by copying image into it.
   // Returns true on success. It is valid for an implementation to always
   // return false.
   virtual bool CopyTexImage(unsigned target) = 0;
 
   // Copy |rect| of image to |offset| in texture currently bound to |target|.
@@ skipping 42 matching lines @@
 
  private:
   friend class base::RefCounted<GLImage>;
 
   DISALLOW_COPY_AND_ASSIGN(GLImage);
 };
 
 }  // namespace gl
 
 #endif  // UI_GL_GL_IMAGE_H_