HW draw workarounds

android_webview/lib/main/aw_main_delegate.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/lib/main/aw_main_delegate.h"
 
 #include "android_webview/browser/aw_content_browser_client.h"
 #include "android_webview/browser/in_process_renderer/in_process_renderer_client.h"
 #include "android_webview/browser/scoped_allow_wait_for_legacy_web_view_api.h"
 #include "android_webview/common/aw_switches.h"
@@ skipping 44 matching lines @@
   webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl
       ::EnableVirtualizedContext();
 
   CommandLine* cl = CommandLine::ForCurrentProcess();
   if (UIAndRendererCompositorThreadsNotMerged()) {
     cl->AppendSwitch(cc::switches::kEnableCompositorFrameMessage);
     cl->AppendSwitch(switches::kEnableWebViewSynchronousAPIs);
   } else {
     cl->AppendSwitch(switches::kEnableSynchronousRendererCompositor);
     cl->AppendSwitch(switches::kEnableVsyncNotification);
+    cl->AppendSwitch("testing-webview-gl-mode");
   }
 
   // WebView uses the existing Android View edge effect for overscroll glow.
   cl->AppendSwitch(switches::kDisableOverscrollEdgeEffect);
 
   return false;
 }
 
 void AwMainDelegate::PreSandboxStartup() {
   // TODO(torne): When we have a separate renderer process, we need to handle
@@ skipping 69 matching lines @@
         AwBrowserContext* browser_context) {
   return AwGeolocationPermissionContext::Create(browser_context);
 }
 
 content::WebContentsViewDelegate* AwMainDelegate::CreateViewDelegate(
     content::WebContents* web_contents) {
   return AwWebContentsViewDelegate::Create(web_contents);
 }
 
 }  // namespace android_webview