gpu: Refactor GpuMemoryBuffer framework for multi-process support.

ui/gl/gl_image_egl.cc

 // Copyright (c) 2013 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.
 
 #include "ui/gl/gl_image_egl.h"
 
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_surface_egl.h"
 
 namespace gfx {
 
 GLImageEGL::GLImageEGL(gfx::Size size)
     : egl_image_(EGL_NO_IMAGE_KHR),
       size_(size) {
 }
 
 GLImageEGL::~GLImageEGL() {
   Destroy();
 }
 
 bool GLImageEGL::Initialize(gfx::GpuMemoryBufferHandle buffer) {
-  EGLClientBuffer cbuf = static_cast<EGLClientBuffer>(buffer);
+  DCHECK(buffer.native_buffer);
   EGLint attrs[] = {
     EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
     EGL_NONE,
   };
   egl_image_ = eglCreateImageKHR(
       GLSurfaceEGL::GetHardwareDisplay(),
       EGL_NO_CONTEXT,
       EGL_NATIVE_BUFFER_ANDROID,
-      cbuf,
+      buffer.native_buffer,
       attrs);
 
   if (egl_image_ == EGL_NO_IMAGE_KHR) {
     EGLint error = eglGetError();
     LOG(ERROR) << "Error creating EGLImage: " << error;
     return false;
   }
 
   return true;
 }
@@ skipping 31 matching lines @@
 
   egl_image_ = EGL_NO_IMAGE_KHR;
 }
 
 void GLImageEGL::ReleaseTexImage() {
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, 0, GL_RGBA, GL_UNSIGNED_BYTE,
       NULL);
 }
 
 }  // namespace gfx