Revert of [blink] Unique pointers in Platform.h

content/child/blink_platform_impl.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_CHILD_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 61 matching lines @@
       const blink::WebSecurityOrigin& origin) override;
   bool DatabaseSetFileSize(const blink::WebString& vfs_file_name,
                            long long size) override;
   size_t ActualMemoryUsageMB() override;
   size_t NumberOfProcessors() override;
 
   size_t MaxDecodedImageBytes() override;
   uint32_t GetUniqueIdForProcess() override;
   blink::WebString UserAgent() override;
   blink::WebURLError CancelledError(const blink::WebURL& url) const override;
-  std::unique_ptr<blink::WebThread> CreateThread(const char* name) override;
+  blink::WebThread* CreateThread(const char* name) override;
   blink::WebThread* CurrentThread() override;
   void RecordAction(const blink::UserMetricsAction&) override;
 
   blink::WebData LoadResource(const char* name) override;
   blink::WebString QueryLocalizedString(
       blink::WebLocalizedString::Name name) override;
   virtual blink::WebString queryLocalizedString(
       blink::WebLocalizedString::Name name,
       int numeric_value);
   blink::WebString QueryLocalizedString(blink::WebLocalizedString::Name name,
                                         const blink::WebString& value) override;
   blink::WebString QueryLocalizedString(
       blink::WebLocalizedString::Name name,
       const blink::WebString& value1,
       const blink::WebString& value2) override;
   void SuddenTerminationChanged(bool enabled) override {}
   blink::WebThread* CompositorThread() const override;
-  std::unique_ptr<blink::WebGestureCurve> CreateFlingAnimationCurve(
+  blink::WebGestureCurve* CreateFlingAnimationCurve(
       blink::WebGestureDevice device_source,
       const blink::WebFloatPoint& velocity,
       const blink::WebSize& cumulative_scroll) override;
   void DidStartWorkerThread() override;
   void WillStopWorkerThread() override;
   bool AllowScriptExtensionForServiceWorker(
       const blink::WebURL& script_url) override;
   blink::WebCrypto* Crypto() override;
   blink::WebNotificationManager* GetNotificationManager() override;
   blink::WebPushProvider* PushProvider() override;
   blink::WebMediaCapabilitiesClient* MediaCapabilitiesClient() override;
 
   blink::WebString DomCodeStringFromEnum(int dom_code) override;
   int DomEnumFromCodeString(const blink::WebString& codeString) override;
   blink::WebString DomKeyStringFromEnum(int dom_key) override;
   int DomKeyEnumFromString(const blink::WebString& key_string) override;
 
   // This class does *not* own the compositor thread. It is the responsibility
   // of the caller to ensure that the compositor thread is cleared before it is
   // destructed.
   void SetCompositorThread(blink::scheduler::WebThreadBase* compositor_thread);
 
-  std::unique_ptr<blink::WebFeaturePolicy> CreateFeaturePolicy(
+  blink::WebFeaturePolicy* CreateFeaturePolicy(
       const blink::WebFeaturePolicy* parentPolicy,
       const blink::WebParsedFeaturePolicy& containerPolicy,
       const blink::WebParsedFeaturePolicy& policyHeader,
       const blink::WebSecurityOrigin& origin) override;
-  std::unique_ptr<blink::WebFeaturePolicy> DuplicateFeaturePolicyWithOrigin(
+  blink::WebFeaturePolicy* DuplicateFeaturePolicyWithOrigin(
       const blink::WebFeaturePolicy& policy,
       const blink::WebSecurityOrigin& new_origin) override;
 
  private:
   void InternalInit();
   void WaitUntilWebThreadTLSUpdate(blink::scheduler::WebThreadBase* thread);
   void UpdateWebThreadTLS(blink::WebThread* thread, base::WaitableEvent* event);
 
   bool IsMainThread() const;
 
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
   WebThemeEngineImpl native_theme_engine_;
   WebFallbackThemeEngineImpl fallback_theme_engine_;
   base::ThreadLocalStorage::Slot current_thread_slot_;
   webcrypto::WebCryptoImpl web_crypto_;
   media::WebMediaCapabilitiesClientImpl media_capabilities_client_;
 
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<NotificationDispatcher> notification_dispatcher_;
 
   blink::scheduler::WebThreadBase* compositor_thread_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_