Move SharedBitmapManager implementation out of content/

content/renderer/renderer_blink_platform_impl.h

Index: content/renderer/renderer_blink_platform_impl.h
diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
index 0a46d4ac5135a7a0c84a4c9953b9e96b47a2b696..afce682261c59183faf2ea5fd555d9c1fd322132 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -16,12 +16,12 @@
 #include "build/build_config.h"
 #include "cc/blink/web_compositor_support_impl.h"
 #include "content/child/blink_platform_impl.h"
-#include "content/child/child_shared_bitmap_manager.h"
 #include "content/common/content_export.h"
 #include "content/common/url_loader_factory.mojom.h"
 #include "content/renderer/origin_trials/web_trial_token_validator_impl.h"
 #include "content/renderer/top_level_blame_context.h"
 #include "content/renderer/webpublicsuffixlist_impl.h"
+#include "services/ui/public/cpp/bitmap/child_shared_bitmap_manager.h"
 #include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBFactory.h"
 #include "third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationType.h"
 
@@ -283,7 +283,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
   scoped_refptr<IPC::SyncMessageFilter> sync_message_filter_;
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<QuotaMessageFilter> quota_message_filter_;
-  ChildSharedBitmapManager* shared_bitmap_manager_;
+  ui::ChildSharedBitmapManager* shared_bitmap_manager_;
 
   std::unique_ptr<WebDatabaseObserverImpl> web_database_observer_impl_;