Add switch to use ipc command buffer in Android WebView

android_webview/browser/aw_browser_main_parts.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 "android_webview/browser/aw_browser_main_parts.h"
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_dev_tools_discovery_provider.h"
 #include "android_webview/browser/aw_media_client_android.h"
 #include "android_webview/browser/aw_result_codes.h"
 #include "android_webview/browser/deferred_gpu_command_service.h"
 #include "android_webview/common/aw_resource.h"
+#include "android_webview/common/aw_switches.h"
 #include "base/android/apk_assets.h"
 #include "base/android/build_info.h"
 #include "base/android/locale_utils.h"
 #include "base/android/memory_pressure_listener_android.h"
+#include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
+#include "content/public/browser/android/synchronous_compositor.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
 #include "content/public/common/url_utils.h"
 #include "media/base/android/media_client_android.h"
 #include "net/android/network_change_notifier_factory_android.h"
 #include "net/base/network_change_notifier.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/layout.h"
@@ skipping 72 matching lines @@
 }
 
 void AwBrowserMainParts::PreMainMessageLoopRun() {
   browser_context_->PreMainMessageLoopRun();
 
   AwDevToolsDiscoveryProvider::Install();
 
   media::SetMediaClientAndroid(
       new AwMediaClientAndroid(AwResource::GetConfigKeySystemUuidMapping()));
 
-  gfx::GLSurface::InitializeOneOff();
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kUseIpcCommandBuffer)) {
+    content::SynchronousCompositor::SetUseIpcCommandBuffer();
+  } else {
+    gfx::GLSurface::InitializeOneOff();
+  }
 
   // This is needed for WebView Classic backwards compatibility
   // See crbug.com/298495
   content::SetMaxURLChars(20 * 1024 * 1024);
 }
 
 bool AwBrowserMainParts::MainMessageLoopRun(int* result_code) {
   // Android WebView does not use default MessageLoop. It has its own
   // Android specific MessageLoop.
   return true;
 }
 
 }  // namespace android_webview