Remove WebContentsObserver::DidGetUserGesture.

content/public/browser/web_contents_observer.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 299 matching lines @@
 
   // This method is invoked when the renderer process has completed its first
   // paint after a non-empty layout.
   virtual void DidFirstVisuallyNonEmptyPaint() {}
 
   // When WebContents::Stop() is called, the WebContents stops loading and then
   // invokes this method. If there are ongoing navigations, their respective
   // 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).

[Charlie Reis, 2016/02/25 18:28:02]

nit: Update the punctuation now that the list is longer.

[dominickn, 2016/02/26 00:36:11]

Done.

+  // 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.
   virtual void DidGetUserInteraction(const blink::WebInputEvent::Type type) {}
 
   // This method is invoked when a RenderViewHost of this WebContents was
   // configured to ignore UI events, and an UI event took place.
   virtual void DidGetIgnoredUIEvent() {}
 
@@ skipping 143 matching lines @@
   void ResetWebContents();
 
   WebContentsImpl* web_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_