Remove WebContentsObserver::DidGetUserGesture.

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index ed8e74189cf6a09c0c4ae29227e6ff179fdf77fa..b0cda5a040d46f9d06e36382cf7cf100ec49386b 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -482,7 +482,8 @@ class CONTENT_EXPORT WebContentsImpl
                            const base::string16& source_id) override;
   RendererPreferences GetRendererPrefs(
       BrowserContext* browser_context) const override;
-  void OnUserInteraction(const blink::WebInputEvent::Type type) override;
+  void OnUserInteraction(RenderWidgetHostImpl* render_widget_host,
+                         const blink::WebInputEvent::Type type) override;
   void OnIgnoredUIEvent() override;
   void LoadStateChanged(const GURL& url,
                         const net::LoadStateWithParam& load_state,
@@ -582,7 +583,6 @@ class CONTENT_EXPORT WebContentsImpl
                               bool* is_keyboard_shortcut) override;
   void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) override;
   bool HandleWheelEvent(const blink::WebMouseWheelEvent& event) override;
-  void OnUserGesture(RenderWidgetHostImpl* render_widget_host) override;
   bool PreHandleGestureEvent(const blink::WebGestureEvent& event) override;
   void DidSendScreenRects(RenderWidgetHostImpl* rwh) override;
   BrowserAccessibilityManager* GetRootBrowserAccessibilityManager() override;