cc: Use a normal texture for background texture.

cc/output/direct_renderer.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/output/direct_renderer.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
@@ skipping 391 matching lines @@
   }
 
   ScopedResource* texture = render_pass_textures_.get(render_pass->id);
   DCHECK(texture);
 
   gfx::Size size = RenderPassTextureSize(render_pass);
   size.Enlarge(enlarge_pass_texture_amount_.x(),
                enlarge_pass_texture_amount_.y());
   if (!texture->id())
     texture->Allocate(
-        size, ResourceProvider::TextureUsageFramebuffer, RGBA_8888);
+        size, ResourceProvider::TextureHintImmutableFramebuffer, RGBA_8888);
   DCHECK(texture->id());
 
   return BindFramebufferToTexture(frame, texture, render_pass->output_rect);
 }
 
 bool DirectRenderer::HasAllocatedResourcesForTesting(RenderPass::Id id)
     const {
   ScopedResource* texture = render_pass_textures_.get(id);
   return texture && texture->id();
 }
 
 // static
 gfx::Size DirectRenderer::RenderPassTextureSize(const RenderPass* render_pass) {
   return render_pass->output_rect.size();
 }
 
 }  // namespace cc