Add flag to disable impl-side painting

content/browser/renderer_host/render_process_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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 19 matching lines @@
 #include "base/process_util.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
 #include "base/supports_user_data.h"
 #include "base/sys_info.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/tracked_objects.h"
 #include "cc/switches.h"
+#include "cc/util.h"
 #include "content/browser/appcache/appcache_dispatcher_host.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/browser_main.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/browser_plugin/browser_plugin_message_filter.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/device_orientation/orientation_message_filter.h"
 #include "content/browser/dom_storage/dom_storage_context_impl.h"
 #include "content/browser/dom_storage/dom_storage_message_filter.h"
 #include "content/browser/download/mhtml_generation_manager.h"
@@ skipping 788 matching lines @@
     switches::kUseGL,
     switches::kUseMobileUserAgent,
     switches::kUserAgent,
     switches::kV,
     switches::kVideoThreads,
     switches::kVModule,
     switches::kWebCoreLogChannels,
     switches::kWebIntentsInvocationEnabled,
     cc::switches::kBackgroundColorInsteadOfCheckerboard,
     cc::switches::kEnableCompositorFrameMessage,
+    cc::switches::kDisableImplSidePainting,
     cc::switches::kEnableImplSidePainting,
     cc::switches::kEnablePartialSwap,
     cc::switches::kEnableRightAlignedScheduling,
     cc::switches::kEnableTopControlsPositionCalculation,
     cc::switches::kNumRasterThreads,
     cc::switches::kShowPropertyChangedRects,
     cc::switches::kShowSurfaceDamageRects,
     cc::switches::kShowScreenSpaceRects,
     cc::switches::kShowReplicaScreenSpaceRects,
     cc::switches::kShowNonOccludingRects,
     cc::switches::kShowOccludingRects,
     cc::switches::kTraceOverdraw,
     cc::switches::kTopControlsHeight,
     cc::switches::kSlowDownRasterScaleFactor,
     cc::switches::kUseCheapnessEstimator,
   };
   renderer_cmd->CopySwitchesFrom(browser_cmd, kSwitchNames,
                                  arraysize(kSwitchNames));
 
   // Disable databases in incognito mode.
   if (GetBrowserContext()->IsOffTheRecord() &&
       !browser_cmd.HasSwitch(switches::kDisableDatabases)) {
     renderer_cmd->AppendSwitch(switches::kDisableDatabases);
 #if defined(OS_ANDROID)
     renderer_cmd->AppendSwitch(switches::kDisableMediaHistoryLogging);
 #endif
   }
 
   // Enforce the extra command line flags for impl-side painting.
-  if (browser_cmd.HasSwitch(cc::switches::kEnableImplSidePainting) &&
+  if (cc::IsImplSidePaintingEnabled(&browser_cmd) &&
       !browser_cmd.HasSwitch(switches::kEnableDeferredImageDecoding))
     renderer_cmd->AppendSwitch(switches::kEnableDeferredImageDecoding);
 }
 
 base::ProcessHandle RenderProcessHostImpl::GetHandle() {
   if (run_renderer_in_process())
     return base::Process::Current().handle();
 
   if (!child_process_launcher_.get() || child_process_launcher_->IsStarting())
     return base::kNullProcessHandle;
@@ skipping 721 matching lines @@
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
   AcceleratedSurfaceMsg_BufferPresented_Params ack_params;
   ack_params.sync_point = 0;
   RenderWidgetHostImpl::AcknowledgeBufferPresent(route_id,
                                                  gpu_process_host_id,
                                                  ack_params);
 }
 
 }  // namespace content