Updated VRService to match the latest Blink WebVR interface.

third_party/WebKit/Source/modules/vr/VRPose.cpp

Index: third_party/WebKit/Source/modules/vr/VRPose.cpp
diff --git a/third_party/WebKit/Source/modules/vr/VRPose.cpp b/third_party/WebKit/Source/modules/vr/VRPose.cpp
index 91d71199d57e6693a9f760f9def7fff139012aae..f362d08c96ae1a1115ba55b02fd13d5e71f82bf0 100644
--- a/third_party/WebKit/Source/modules/vr/VRPose.cpp
+++ b/third_party/WebKit/Source/modules/vr/VRPose.cpp
@@ -8,27 +8,10 @@ namespace blink {
 
 namespace {
 
-DOMFloat32Array* vecToFloat32Array(const mojom::blink::VRVector4Ptr& vec)
+DOMFloat32Array* mojoArrayToFloat32Array(const mojo::WTFArray<float>& vec)
 {
-    if (!vec.is_null()) {
-        DOMFloat32Array* out = DOMFloat32Array::create(4);
-        out->data()[0] = vec->x;
-        out->data()[1] = vec->y;
-        out->data()[2] = vec->z;
-        out->data()[3] = vec->w;
-        return out;
-    }
-    return nullptr;
-}
-
-DOMFloat32Array* vecToFloat32Array(const mojom::blink::VRVector3Ptr& vec)
-{
-    if (!vec.is_null()) {
-        DOMFloat32Array* out = DOMFloat32Array::create(3);
-        out->data()[0] = vec->x;
-        out->data()[1] = vec->y;
-        out->data()[2] = vec->z;
-        return out;
+    if (!vec.is_null() && vec.size()) {

[dcheng, 2016/05/19 22:17:48]

We don't actually expect size == 0 if the vector is non-null right? I think this
could/should be an assert.

+        return DOMFloat32Array::create(&(vec.front()), vec.size());
     }
     return nullptr;
 }
@@ -40,18 +23,18 @@ VRPose::VRPose()
 {
 }
 
-void VRPose::setPose(const mojom::blink::VRSensorStatePtr& state)
+void VRPose::setPose(const mojom::blink::VRPosePtr& state)
 {
     if (state.is_null())
         return;
 
     m_timeStamp = state->timestamp;
-    m_orientation = vecToFloat32Array(state->orientation);
-    m_position = vecToFloat32Array(state->position);
-    m_angularVelocity = vecToFloat32Array(state->angularVelocity);
-    m_linearVelocity = vecToFloat32Array(state->linearVelocity);
-    m_angularAcceleration = vecToFloat32Array(state->angularAcceleration);
-    m_linearAcceleration = vecToFloat32Array(state->linearAcceleration);
+    m_orientation = mojoArrayToFloat32Array(state->orientation);
+    m_position = mojoArrayToFloat32Array(state->position);
+    m_angularVelocity = mojoArrayToFloat32Array(state->angularVelocity);
+    m_linearVelocity = mojoArrayToFloat32Array(state->linearVelocity);
+    m_angularAcceleration = mojoArrayToFloat32Array(state->angularAcceleration);
+    m_linearAcceleration = mojoArrayToFloat32Array(state->linearAcceleration);
 }
 
 DEFINE_TRACE(VRPose)