Adding Chrome-side WebVR interface

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index b44691dc57a9f4df6a18592fbf89559507476de8..e17a3129c95cbae09d2c804e6cfa5d4074dcfbde 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -103,6 +103,7 @@
 #include "content/renderer/shared_worker_repository.h"
 #include "content/renderer/skia_benchmarking_extension.h"
 #include "content/renderer/stats_collection_controller.h"
+#include "content/renderer/vr/vr_dispatcher.h"
 #include "content/renderer/web_ui_extension.h"
 #include "content/renderer/websharedworker_proxy.h"
 #include "gin/modules/module_registry.h"
@@ -699,6 +700,7 @@ RenderFrameImpl::RenderFrameImpl(RenderViewImpl* render_view, int routing_id)
       manifest_manager_(NULL),
       accessibility_mode_(AccessibilityModeOff),
       renderer_accessibility_(NULL),
+      vr_dispatcher_(NULL),
       weak_factory_(this) {
   std::pair<RoutingIDFrameMap::iterator, bool> result =
       g_routing_id_frame_map.Get().insert(std::make_pair(routing_id_, this));
@@ -3780,6 +3782,15 @@ blink::WebAppBannerClient* RenderFrameImpl::appBannerClient() {
   return app_banner_client_.get();
 }
 
+blink::WebVRClient* RenderFrameImpl::webVRClient() {
+  // vr_dispatcher_ is a RenderFrameObserver and will be deleted when the frame
+  // is destroyed, as described in render_frame_observer.h
+  if (!vr_dispatcher_)
+    vr_dispatcher_ = new VRDispatcher(this);
+
+  return vr_dispatcher_;
+}
+
 void RenderFrameImpl::DidPlay(blink::WebMediaPlayer* player) {
   Send(new FrameHostMsg_MediaPlayingNotification(
       routing_id_, reinterpret_cast<int64>(player), player->hasVideo(),