Remove WebContentsObserver::DidGetUserGesture.

content/public/browser/web_contents_observer.h

Index: content/public/browser/web_contents_observer.h
diff --git a/content/public/browser/web_contents_observer.h b/content/public/browser/web_contents_observer.h
index 6c8aded1a2b56e042940e080e4f3070f88bcdde0..29c2c1edb72ee34b82daa08c188647caf5451d82 100644
--- a/content/public/browser/web_contents_observer.h
+++ b/content/public/browser/web_contents_observer.h
@@ -317,22 +317,19 @@ class CONTENT_EXPORT WebContentsObserver : public IPC::Listener,
   // failure methods will also be invoked.
   virtual void NavigationStopped() {}
 
-  // This indicates that the next navigation was triggered by a user gesture.
-  // TODO(dominickn): remove this method in favor of DidGetUserInteraction,
-  // with the appropriate filtering by input event type.
-  virtual void DidGetUserGesture() {}
-
   // Called when there has been direct user interaction with the WebContents.
   // The type argument specifies the kind of interaction. Direct user input
   // signalled through this callback includes:
   // 1) any mouse down event (blink::WebInputEvent::MouseDown);
   // 2) the start of a mouse wheel scroll (blink::WebInputEvent::MouseWheel);
-  // 3) any raw key down event (blink::WebInputEvent::RawKeyDown); and
-  // 4) any gesture tap event (blink::WebInputEvent::GestureTapDown).
+  // 3) any raw key down event (blink::WebInputEvent::RawKeyDown);
+  // 4) any gesture tap event (blink::WebInputEvent::GestureTapDown); and
+  // 5) a browser navigation or reload (blink::WebInputEvent::Undefined).
   // The start of a mouse wheel scroll is heuristically detected: a mouse
   // wheel event fired at least 0.1 seconds after any other wheel event is
   // regarded as the beginning of a scroll. This matches the interval used by
   // the Blink EventHandler to detect the end of scrolls.
+  // TODO(dominickn): replace MouseWheel with GestureScrollBegin.
   virtual void DidGetUserInteraction(const blink::WebInputEvent::Type type) {}
 
   // This method is invoked when a RenderViewHost of this WebContents was