Add deprecation messages to deprecated parts of the WebVR API.

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

Index: third_party/WebKit/Source/modules/vr/VRDisplay.cpp
diff --git a/third_party/WebKit/Source/modules/vr/VRDisplay.cpp b/third_party/WebKit/Source/modules/vr/VRDisplay.cpp
index a4870e618ba4f50eef7f1c5b818c28c3baf9c063..bb1d94a9904f121d5b1a1547cb209a6798e7802a 100644
--- a/third_party/WebKit/Source/modules/vr/VRDisplay.cpp
+++ b/third_party/WebKit/Source/modules/vr/VRDisplay.cpp
@@ -104,10 +104,6 @@ bool VRDisplay::getFrameData(VRFrameData* frameData)
 
 VRPose* VRDisplay::getPose()
 {
-    Document* document = m_navigatorVR->document();
-    if (document)
-        UseCounter::count(*document, UseCounter::VRDeprecatedGetPose);

[amp, 2016/10/05 20:43:14]

Do we not need this counter anymore?

[billorr, 2016/10/05 21:01:03]

I moved it to the IDL, so it will generate a deprecation message as well as
track the counter.

[billorr, 2016/10/05 22:47:55]

Done.

-
     updatePose();
 
     if (!m_framePose)
@@ -161,6 +157,15 @@ void VRDisplay::cancelAnimationFrame(int id)
 
 ScriptPromise VRDisplay::requestPresent(ScriptState* scriptState, const HeapVector<VRLayer>& layers)
 {
+    ExecutionContext* executionContext = scriptState->getExecutionContext();
+    String errorMessage;
+    if (executionContext->isSecureContext(errorMessage)) {

[ddorwin, 2016/10/05 21:32:43]

ditto

[billorr, 2016/10/05 21:55:27]

Acknowledged.

[billorr, 2016/10/05 22:47:55]

Done.

+        UseCounter::count(executionContext, UseCounter::VRRequestPresent);
+    } else {
+        UseCounter::count(executionContext,
+            UseCounter::VRRequestPresentInsecureOrigin);
+    }
+
     ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();