Remove PrerenderCondition*.

chrome/browser/android/prerender_condition_platform.h

-// Copyright 2013 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 CHROME_BROWSER_ANDROID_PRERENDER_CONDITION_PLATFORM_H_
-#define CHROME_BROWSER_ANDROID_PRERENDER_CONDITION_PLATFORM_H_
-
-#include "base/compiler_specific.h"
-#include "base/supports_user_data.h"
-#include "chrome/browser/prerender/prerender_condition.h"
-
-namespace content {
-class BrowserContext;
-}  // namespace content
-
-namespace android {
-
-class PrerenderConditionPlatform : public prerender::PrerenderCondition {
- public:
-  explicit PrerenderConditionPlatform(content::BrowserContext* context);
-  virtual ~PrerenderConditionPlatform();
-
-  // prerender::PrerenderCondition
-  virtual bool CanPrerender() const OVERRIDE;
-
-  static void SetEnabled(content::BrowserContext* context, bool enabled);
- private:
-  content::BrowserContext* context_;
-  DISALLOW_COPY_AND_ASSIGN(PrerenderConditionPlatform);
-};
-
-}  // namespace android
-
-#endif  // CHROME_BROWSER_ANDROID_PRERENDER_CONDITION_PLATFORM_H_