[NOT FOR COMMIT] Hacks to get hardware canvas

cc/resources/resource_provider.cc

 // Copyright 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.
 
 #include "cc/resources/resource_provider.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/containers/hash_tables.h"
@@ skipping 506 matching lines @@
   TRACE_EVENT0("cc", "ResourceProvider::DeleteResourceInternal");
   Resource* resource = &it->second;
   bool lost_resource = resource->lost;
 
   DCHECK(resource->exported_count == 0 || style != Normal);
   if (style == ForShutdown && resource->exported_count > 0)
     lost_resource = true;
 
   if (resource->image_id) {
     GLES2Interface* gl = ContextGL();
-    DCHECK(gl);
-    GLC(gl, gl->DestroyImageCHROMIUM(resource->image_id));
+    if (gl) {
+      DCHECK(gl);
+      GLC(gl, gl->DestroyImageCHROMIUM(resource->image_id));
+    }
   }
 
   if (resource->gl_id && !resource->external) {
     GLES2Interface* gl = ContextGL();
+    if (gl) {
     DCHECK(gl);
     GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
+    }
   }
   if (resource->gl_upload_query_id) {
     GLES2Interface* gl = ContextGL();
+    if (gl) {
     DCHECK(gl);
     GLC(gl, gl->DeleteQueriesEXT(1, &resource->gl_upload_query_id));
+    }
   }
   if (resource->gl_pixel_buffer_id) {
     GLES2Interface* gl = ContextGL();
+    if (gl) {
     DCHECK(gl);
     GLC(gl, gl->DeleteBuffers(1, &resource->gl_pixel_buffer_id));
+    }
   }
   if (resource->mailbox.IsValid() && resource->external) {
     GLuint sync_point = resource->mailbox.sync_point();
     if (resource->mailbox.IsTexture()) {
       lost_resource |= lost_output_surface_;
       GLES2Interface* gl = ContextGL();
-      DCHECK(gl);
-      if (resource->gl_id)
-        GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
-      if (!lost_resource && resource->gl_id)
-        sync_point = gl->InsertSyncPointCHROMIUM();
+      if (gl) {
+        DCHECK(gl);
+        if (resource->gl_id)
+          GLC(gl, gl->DeleteTextures(1, &resource->gl_id));
+        if (!lost_resource && resource->gl_id)
+          sync_point = gl->InsertSyncPointCHROMIUM();
+      }
     } else {
       DCHECK(resource->mailbox.IsSharedMemory());
       base::SharedMemory* shared_memory = resource->mailbox.shared_memory();
       if (resource->pixels && shared_memory) {
         DCHECK(shared_memory->memory() == resource->pixels);
         resource->pixels = NULL;
         delete resource->shared_bitmap;
         resource->shared_bitmap = NULL;
       }
     }
@@ skipping 1238 matching lines @@
   gl->GetIntegerv(GL_ACTIVE_TEXTURE, &active_unit);
   return active_unit;
 }
 
 GLES2Interface* ResourceProvider::ContextGL() const {
   ContextProvider* context_provider = output_surface_->context_provider();
   return context_provider ? context_provider->ContextGL() : NULL;
 }
 
 }  // namespace cc