Adding counters for the types of Media Constraints.

third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp

Index: third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp
diff --git a/third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp b/third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp
index d8419394bfd418f06d0fb8bf9f9269b6bd7ebdf6..431292761e54f521d3325d25187fbdbbbe38a5ab 100644
--- a/third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp
+++ b/third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp
@@ -48,7 +48,7 @@
 
 namespace blink {
 
-static WebMediaConstraints parseOptions(const BooleanOrMediaTrackConstraintSet& options, MediaErrorState& errorState)
+static WebMediaConstraints parseOptions(ExecutionContext* context, const BooleanOrMediaTrackConstraintSet& options, MediaErrorState& errorState)
 {
     WebMediaConstraints constraints;
 
@@ -56,7 +56,7 @@ static WebMediaConstraints parseOptions(const BooleanOrMediaTrackConstraintSet&
     if (options.isNull()) {
         // Do nothing.
     } else if (options.isMediaTrackConstraintSet()) {
-        constraints = MediaConstraintsImpl::create(options.getAsMediaTrackConstraintSet(), errorState);
+        constraints = MediaConstraintsImpl::create(context, options.getAsMediaTrackConstraintSet(), errorState);
     } else {
         ASSERT(options.isBoolean());
         if (options.getAsBoolean()) {
@@ -69,11 +69,11 @@ static WebMediaConstraints parseOptions(const BooleanOrMediaTrackConstraintSet&
 
 UserMediaRequest* UserMediaRequest::create(ExecutionContext* context, UserMediaController* controller, const MediaStreamConstraints& options, NavigatorUserMediaSuccessCallback* successCallback, NavigatorUserMediaErrorCallback* errorCallback, MediaErrorState& errorState)
 {
-    WebMediaConstraints audio = parseOptions(options.audio(), errorState);
+    WebMediaConstraints audio = parseOptions(context, options.audio(), errorState);
     if (errorState.hadException())
         return nullptr;
 
-    WebMediaConstraints video = parseOptions(options.video(), errorState);
+    WebMediaConstraints video = parseOptions(context, options.video(), errorState);
     if (errorState.hadException())
         return nullptr;