Add GetUserMedia ETLD+1 rappor metrics.

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 f869e7822a0b3ae61093454c11113a0b13b4df51..17da6a2c1edd51e194ebdfa780a8bc3f9dd2ab69 100644
--- a/third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp
+++ b/third_party/WebKit/Source/modules/mediastream/UserMediaRequest.cpp
@@ -46,6 +46,7 @@
 #include "modules/mediastream/UserMediaController.h"
 #include "platform/mediastream/MediaStreamCenter.h"
 #include "platform/mediastream/MediaStreamDescriptor.h"
+#include "public/platform/Platform.h"
 
 namespace blink {
 
@@ -133,6 +134,7 @@ bool UserMediaRequest::isSecureContextUse(String& errorMessage)
         UseCounter::count(document->frame(), UseCounter::GetUserMediaSecureOrigin);
         UseCounter::countCrossOriginIframe(*document, UseCounter::GetUserMediaSecureOriginIframe);
         HostsUsingFeatures::countAnyWorld(*document, HostsUsingFeatures::Feature::GetUserMediaSecureHost);
+        Platform::current()->recordRapporURL("GetUserMedia.SecureOrigin", WebURL(document->url()));

[Guido Urdaneta, 2016/06/10 12:47:49]

Is "GetUserMedia.SecureOrigin" a good name for this metric?
The name of the metric currently reported by HostsUsingFeatures is
"PowerfulFeatureUse.Host.GetUserMedia.Secure".

[tommi (sloooow) - chröme, 2016/06/10 13:19:36]

Sounds reasonable to me and consistent with how things are currently being
reported - but I don't have anything else to compare against really.

         return true;
     }
 
@@ -141,6 +143,7 @@ bool UserMediaRequest::isSecureContextUse(String& errorMessage)
     Deprecation::countDeprecation(document->frame(), UseCounter::GetUserMediaInsecureOrigin);
     Deprecation::countDeprecationCrossOriginIframe(*document, UseCounter::GetUserMediaInsecureOriginIframe);
     HostsUsingFeatures::countAnyWorld(*document, HostsUsingFeatures::Feature::GetUserMediaInsecureHost);
+    Platform::current()->recordRapporURL("GetUserMedia.InsecureOrigin", WebURL(document->url()));
     return false;
 }