Delete unused method for getting push client.

content/shell/renderer/test_runner/web_test_proxy.h

 // Copyright 2014 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_SHELL_RENDERER_TEST_RUNNER_WEB_TEST_PROXY_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_WEB_TEST_PROXY_H_
 
 #include <deque>
 #include <map>
 #include <string>
@@ skipping 381 matching lines @@
 
     WebTestProxyBase::ShowValidationMessage(
         wrapped_main_text, wrapped_sub_text);
   }
   virtual void postSpellCheckEvent(const blink::WebString& event_name) {
     WebTestProxyBase::PostSpellCheckEvent(event_name);
   }
   virtual blink::WebString acceptLanguages() {
     return WebTestProxyBase::acceptLanguages();
   }
-  virtual blink::WebPushClient* webPushClient() {
-    return WebTestProxyBase::GetWebPushClient();
-  }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebTestProxy);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_WEB_TEST_PROXY_H_