Remove PrerenderCondition*.

chrome/browser/android/prerender_condition_platform.cc

-// 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.
-
-#include "base/prefs/pref_service.h"
-#include "chrome/browser/android/prerender_condition_platform.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/common/pref_names.h"
-
-namespace android {
-
-namespace {
-
-const char kAllowPrerender[] = "allow-prerender";
-
-class BooleanWrapper : public base::SupportsUserData::Data {
- public:
-  explicit BooleanWrapper(bool b) : m_b(b) { }
-  virtual ~BooleanWrapper() { }
-
-  operator bool() const { return m_b; }
- private:
-  bool m_b;
-  DISALLOW_COPY_AND_ASSIGN(BooleanWrapper);
-};
-
-}  // namespace
-
-PrerenderConditionPlatform::PrerenderConditionPlatform(
-    content::BrowserContext* context)
-    : context_(context) {}
-
-PrerenderConditionPlatform::~PrerenderConditionPlatform() {}
-
-bool PrerenderConditionPlatform::CanPrerender() const {
-  base::SupportsUserData::Data* data = context_->GetUserData(kAllowPrerender);
-  if (!data)
-    return true;
-  BooleanWrapper* b = static_cast<BooleanWrapper*>(data);
-  return *b;
-}
-
-void PrerenderConditionPlatform::SetEnabled(content::BrowserContext* context,
-                                            bool enabled) {
-  BooleanWrapper* wrapper = new BooleanWrapper(enabled);
-  context->SetUserData(kAllowPrerender, wrapper);
-}
-
-}  // namespace android