Remove allow-webui-compositing switch

content/browser/renderer_host/render_view_host_impl.cc

 // 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.
 
 #include "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 509 matching lines @@
   GpuDataManagerImpl::GetInstance()->UpdateRendererWebPrefs(&prefs);
 
   if (ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
           GetProcess()->GetID())) {
     prefs.loads_images_automatically = true;
     prefs.javascript_enabled = true;
   }
 
   prefs.is_online = !net::NetworkChangeNotifier::IsOffline();
 
-#if !defined(USE_AURA)
-  // Force accelerated compositing and 2d canvas off for chrome: and about:
-  // pages (unless it's specifically allowed).
-  if ((url.SchemeIs(kChromeUIScheme) ||
-       (url.SchemeIs(chrome::kAboutScheme) && url.spec() != kAboutBlankURL)) &&
-      !command_line.HasSwitch(switches::kAllowWebUICompositing)) {
-    prefs.accelerated_compositing_enabled = false;
-    prefs.accelerated_2d_canvas_enabled = false;
-  }
-#endif
-
   prefs.fixed_position_creates_stacking_context = !command_line.HasSwitch(
       switches::kDisableFixedPositionCreatesStackingContext);
 
 #if defined(OS_CHROMEOS)
   prefs.gesture_tap_highlight_enabled = !command_line.HasSwitch(
       switches::kDisableGestureTapHighlight);
 #else
   prefs.gesture_tap_highlight_enabled = command_line.HasSwitch(
       switches::kEnableGestureTapHighlight);
 #endif
@@ skipping 1610 matching lines @@
 void RenderViewHostImpl::AttachToFrameTree() {
   FrameTree* frame_tree = delegate_->GetFrameTree();
 
   frame_tree->ResetForMainFrameSwap();
   if (main_frame_id() != FrameTreeNode::kInvalidFrameId) {
     frame_tree->OnFirstNavigationAfterSwap(main_frame_id());
   }
 }
 
 }  // namespace content