Remove enable-software-compositing command-line flag.

content/renderer/render_widget.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/renderer/render_widget.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/debug/trace_event_synthetic_delay.h"
@@ skipping 896 matching lines @@
   uint32 output_surface_id = next_output_surface_id_++;
   if (command_line.HasSwitch(switches::kEnableDelegatedRenderer)) {
     DCHECK(is_threaded_compositing_enabled_);
     return scoped_ptr<cc::OutputSurface>(
         new DelegatedCompositorOutputSurface(
             routing_id(),
             output_surface_id,
             context_provider));
   }
   if (!context_provider.get()) {
-    if (!command_line.HasSwitch(switches::kEnableSoftwareCompositing))
-      return scoped_ptr<cc::OutputSurface>();
-
     scoped_ptr<cc::SoftwareOutputDevice> software_device(
         new CompositorSoftwareOutputDevice());
 
     return scoped_ptr<cc::OutputSurface>(new CompositorOutputSurface(
         routing_id(),
         output_surface_id,
         NULL,
         software_device.Pass(),
         true));
   }
@@ skipping 1890 matching lines @@
 
 void RenderWidget::RegisterSwappedOutChildFrame(RenderFrameImpl* frame) {
   swapped_out_frames_.AddObserver(frame);
 }
 
 void RenderWidget::UnregisterSwappedOutChildFrame(RenderFrameImpl* frame) {
   swapped_out_frames_.RemoveObserver(frame);
 }
 
 }  // namespace content