Part 2 of base::IDMap refactor to eliminate IDMapOwnPointer/IDMapExternalPointer modes

content/renderer/renderer_blink_platform_impl.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 272 matching lines @@
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<QuotaMessageFilter> quota_message_filter_;
   ChildSharedBitmapManager* shared_bitmap_manager_;
 
   std::unique_ptr<WebDatabaseObserverImpl> web_database_observer_impl_;
 
   cc_blink::WebCompositorSupportImpl compositor_support_;
 
   std::unique_ptr<blink::WebScrollbarBehavior> web_scrollbar_behavior_;
 
-  IDMap<PlatformEventObserverBase, IDMapOwnPointer> platform_event_observers_;
+  IDMap<std::unique_ptr<PlatformEventObserverBase>> platform_event_observers_;
 
   blink::scheduler::RendererScheduler* renderer_scheduler_;  // NOT OWNED
   TopLevelBlameContext top_level_blame_context_;
 
   WebTrialTokenValidatorImpl trial_token_validator_;
 
   std::unique_ptr<LocalStorageCachedAreas> local_storage_cached_areas_;
 
   std::unique_ptr<BlinkInterfaceProviderImpl> blink_interface_provider_;
 
   mojom::URLLoaderFactoryAssociatedPtr url_loader_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererBlinkPlatformImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_