Adds support for the GL_ANGLE_texture_usage and GL_EXT_texture_storage

content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc

 // Copyright (c) 2011 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.
 
 #if defined(ENABLE_GPU)
 
 #include "content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.h"
 
 #include "third_party/khronos/GLES2/gl2.h"
 #ifndef GL_GLEXT_PROTOTYPES
@@ skipping 1125 matching lines @@
 
 void WebGraphicsContext3DCommandBufferImpl::
     setSwapBuffersCompleteCallbackCHROMIUM(
     WebGraphicsContext3D::WebGraphicsSwapBuffersCompleteCallbackCHROMIUM* cb) {
   swapbuffers_complete_callback_ = cb;
 }
 
 DELEGATE_TO_GL_5(texImageIOSurface2DCHROMIUM, TexImageIOSurface2DCHROMIUM,
                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Duint, WGC3Duint)
 
+DELEGATE_TO_GL_5(texStorage2DEXT, TexStorage2DEXT,
+                 WGC3Denum, WGC3Dint, WGC3Duint, WGC3Dint, WGC3Dint)
+
 #if WEBKIT_USING_SKIA
 GrGLInterface* WebGraphicsContext3DCommandBufferImpl::onCreateGrGLInterface() {
   return webkit_glue::CreateCommandBufferSkiaGLBinding();
 }
 #endif
 
 namespace {
 
 WGC3Denum convertReason(RendererGLContext::ContextLostReason reason) {
   switch (reason) {
@@ skipping 17 matching lines @@
   if (context_lost_callback_) {
     context_lost_callback_->onContextLost();
   }
   RenderViewImpl* renderview =
       web_view_ ? RenderViewImpl::FromWebView(web_view_) : NULL;
   if (renderview)
     renderview->OnViewContextSwapBuffersAborted();
 }
 
 #endif  // defined(ENABLE_GPU)