Collect more UMA data about dialogs and site engagement.

third_party/WebKit/public/web/WebUserGestureIndicator.h

Index: third_party/WebKit/public/web/WebUserGestureIndicator.h
diff --git a/third_party/WebKit/public/web/WebUserGestureIndicator.h b/third_party/WebKit/public/web/WebUserGestureIndicator.h
index b7c7f3cfcf1da8abd31c6af2cd8fef7b65e31ea4..2a0e885f828ec2b3ecdcbf3554d079ad6bbac9d5 100644
--- a/third_party/WebKit/public/web/WebUserGestureIndicator.h
+++ b/third_party/WebKit/public/web/WebUserGestureIndicator.h
@@ -45,6 +45,10 @@ public:
     // Returns true if a consumable gesture exists and has been successfully consumed.
     BLINK_EXPORT static bool consumeUserGesture();
 
+    // Returns true if a user gesture was processed on the current page since the time
+    // the page was loaded.
+    BLINK_EXPORT static bool processedUserGestureSinceLoad();
+
     // Returns a token for the currently active user gesture. It can be used to
     // continue processing the user gesture later on using a
     // WebScopedUserGesture.