Remove WebContentsObserver::DidGetUserGesture.

chrome/browser/ui/browser_browsertest.cc

 // Copyright 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.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <string>
 
 #include "base/bind.h"
@@ skipping 2081 matching lines @@
   // interstitial is deleted now.
 }
 
 class MockWebContentsObserver : public WebContentsObserver {
  public:
   explicit MockWebContentsObserver(WebContents* web_contents)
       : WebContentsObserver(web_contents),
         got_user_gesture_(false) {
   }
 
-  void DidGetUserGesture() override { got_user_gesture_ = true; }
+  void DidGetUserInteraction(const blink::WebInputEvent::Type type) override {
+    // We expect the only interaction here to be a browser-initiated navigation,
+    // which is sent with the Undefined event type.
+    EXPECT_EQ(type, blink::WebInputEvent::Undefined);

[Lei Zhang, 2016/02/26 02:38:39]

Reverse the arguments - EXPECT_EQ(expected_val, actual_val);

+    got_user_gesture_ = true;
+  }
 
   bool got_user_gesture() const {
     return got_user_gesture_;
   }
 
   void set_got_user_gesture(bool got_it) {
     got_user_gesture_ = got_it;
   }
 
  private:
@@ skipping 1179 matching lines @@
     Browser* browser = new Browser(params);
     gfx::Rect bounds = browser->window()->GetBounds();
 
     // Should be EXPECT_EQ, but this width is inconsistent across platforms.
     // See https://crbug.com/567925.
     EXPECT_GE(bounds.width(), 100);
     EXPECT_EQ(122, bounds.height());
     browser->window()->Close();
   }
 }