Add --disable-compositor-touch-hit-testing flag

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/gpu_memory_buffer_factory_impl.h"
 #include "android_webview/browser/in_process_view_renderer.h"
 #include "android_webview/browser/scoped_allow_wait_for_legacy_web_view_api.h"
@@ skipping 57 matching lines @@
 
   // Ganesh backed 2D-Canvas is not yet working and causes crashes.
   cl->AppendSwitch(switches::kDisableAccelerated2dCanvas);
 
   // File system API not supported (requires some new API; internal bug 6930981)
   cl->AppendSwitch(switches::kDisableFileSystem);
 
   // Enable D-PAD navigation for application compatibility.
   cl->AppendSwitch(switches::kEnableSpatialNavigation);
 
+  // Disable compositor touch hit testing for now to mitigate risk of bugs.
+  cl->AppendSwitch(cc::switches::kDisableCompositorTouchHitTesting);
+
   // Disable WebRTC.
   cl->AppendSwitch(switches::kDisableWebRTC);
 
   return false;
 }
 
 void AwMainDelegate::PreSandboxStartup() {
   // TODO(torne): When we have a separate renderer process, we need to handle
   // being passed open FDs for the resource paks here.
 }
@@ skipping 55 matching lines @@
 content::WebContentsViewDelegate* AwMainDelegate::CreateViewDelegate(
     content::WebContents* web_contents) {
   return AwWebContentsViewDelegate::Create(web_contents);
 }
 
 AwWebPreferencesPopulater* AwMainDelegate::CreateWebPreferencesPopulater() {
   return new AwWebPreferencesPopulaterImpl();
 }
 
 }  // namespace android_webview