Stop disabling force_compositing_mode for background RenderViews.

content/renderer/render_view_impl.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 CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 176 matching lines @@
                                 const RendererPreferences& renderer_prefs,
                                 const WebPreferences& webkit_prefs,
                                 int32 routing_id,
                                 int32 main_frame_routing_id,
                                 int32 surface_id,
                                 int64 session_storage_namespace_id,
                                 const base::string16& frame_name,
                                 bool is_renderer_created,
                                 bool swapped_out,
                                 bool hidden,
+                                bool background,
                                 int32 next_page_id,
                                 const blink::WebScreenInfo& screen_info,
                                 AccessibilityMode accessibility_mode);
 
   // Used by content_layouttest_support to hook into the creation of
   // RenderViewImpls.
   static void InstallCreateHook(
       RenderViewImpl* (*create_render_view_impl)(RenderViewImplParams*));
 
   // Returns the RenderViewImpl containing the given WebView.
@@ skipping 1196 matching lines @@
   // use the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_