Adding Chrome-side WebVR interface

content/renderer/renderer_blink_platform_impl.cc

Index: content/renderer/renderer_blink_platform_impl.cc
diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
index 2ac75e6a7b8d357af2e1b661b8cc4eac144cfff2..814d1ed696c91755bdcab75f1be7b1130e390094 100644
--- a/content/renderer/renderer_blink_platform_impl.cc
+++ b/content/renderer/renderer_blink_platform_impl.cc
@@ -54,6 +54,7 @@
 #include "content/renderer/scheduler/web_scheduler_impl.h"
 #include "content/renderer/scheduler/webthread_impl_for_scheduler.h"
 #include "content/renderer/screen_orientation/screen_orientation_observer.h"
+#include "content/renderer/vr_dispatcher.h"
 #include "content/renderer/webclipboard_impl.h"
 #include "content/renderer/webgraphicscontext3d_provider_impl.h"
 #include "content/renderer/webpublicsuffixlist_impl.h"
@@ -78,6 +79,7 @@
 #include "third_party/WebKit/public/platform/WebMediaStreamCenterClient.h"
 #include "third_party/WebKit/public/platform/WebPluginListBuilder.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
+#include "third_party/WebKit/public/platform/WebVR.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "ui/gfx/color_profile.h"
 #include "url/gurl.h"
@@ -841,6 +843,32 @@ void RendererBlinkPlatformImpl::sampleGamepads(WebGamepads& gamepads) {
 
 //------------------------------------------------------------------------------
 
+void RendererBlinkPlatformImpl::getVRDevices(
+    blink::WebVector<blink::WebVRDevice>* devices) {

[no sievers, 2015/03/26 19:55:15]

Looks like all the APIs below check RenderThreadImpl::current() for NULL and
early-out. Although I'm not fully sure why (maybe to accomodate some standalone
tests?). But maybe we should do it here too for consistency.

+  RenderThreadImpl::current()->vr_dispatcher()->GetVRDevices(
+      devices);
+}
+
+void RendererBlinkPlatformImpl::getHMDSensorState(
+    unsigned index, blink::WebHMDSensorState& into) {
+  RenderThreadImpl::current()->vr_dispatcher()->GetSensorState(index, into);
+}
+
+void RendererBlinkPlatformImpl::resetVRSensor(unsigned index) {
+  RenderThreadImpl::current()->vr_dispatcher()->ResetSensor(index);
+}
+
+void RendererBlinkPlatformImpl::getVRRenderTargetRects(unsigned index,
+    blink::WebVRFieldOfView leftFov,
+    blink::WebVRFieldOfView rightFov,
+    blink::WebVRVector4* leftRect,
+    blink::WebVRVector4* rightRect) {
+  RenderThreadImpl::current()->vr_dispatcher()->GetRenderTargetRects(
+      index, leftFov, rightFov, leftRect, rightRect);
+}
+
+//------------------------------------------------------------------------------
+
 WebRTCPeerConnectionHandler*
 RendererBlinkPlatformImpl::createRTCPeerConnectionHandler(
     WebRTCPeerConnectionHandlerClient* client) {