Enable virtual viewport on Android

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/browser_view_renderer.h"
 #include "android_webview/browser/scoped_allow_wait_for_legacy_web_view_api.h"
 #include "android_webview/lib/aw_browser_dependency_factory_impl.h"
 #include "android_webview/native/aw_media_url_interceptor.h"
 #include "android_webview/native/aw_quota_manager_bridge_impl.h"
 #include "android_webview/native/aw_web_contents_view_delegate.h"
 #include "android_webview/native/aw_web_preferences_populater_impl.h"
 #include "android_webview/native/external_video_surface_container_impl.h"
 #include "android_webview/renderer/aw_content_renderer_client.h"
 #include "base/command_line.h"
 #include "base/cpu.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_restrictions.h"
+#include "cc/base/switches.h"
 #include "content/browser/media/android/browser_media_player_manager.h"
 #include "content/public/browser/browser_main_runner.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/content_switches.h"
 #include "gpu/command_buffer/client/gl_in_process_context.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "media/base/media_switches.h"
 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
 
 namespace android_webview {
@@ skipping 43 matching lines @@
 #if defined(VIDEO_HOLE)
   // Support EME/L1 with hole-punching.
   cl->AppendSwitch(switches::kMediaDrmEnableNonCompositing);
 #endif
 
   // WebRTC hardware decoding is not supported, internal bug 15075307
   cl->AppendSwitch(switches::kDisableWebRtcHWDecoding);
 
   // This is needed for sharing textures across the different GL threads.
   cl->AppendSwitch(switches::kEnableThreadedTextureMailboxes);
+
+  // Virtual viewport doesn't behave well with web view. crbug.com/426891
+  cl->AppendSwitch(cc::switches::kDisablePinchVirtualViewport);
+
   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.
 #if defined(ARCH_CPU_ARM_FAMILY)
   // Create an instance of the CPU class to parse /proc/cpuinfo and cache
   // cpu_brand info.
   base::CPU cpu_info;
@@ skipping 59 matching lines @@
 
 #if defined(VIDEO_HOLE)
 content::ExternalVideoSurfaceContainer*
 AwMainDelegate::CreateExternalVideoSurfaceContainer(
     content::WebContents* web_contents) {
   return new ExternalVideoSurfaceContainerImpl(web_contents);
 }
 #endif
 
 }  // namespace android_webview