[Android, RemotePlayback] Make RemotePlayback classes ActiveScriptWrappable's

third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.h

Index: third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.h
diff --git a/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.h b/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.h
index 0458704dab21fea73bcfa3dfff6512fc2d51770e..58641e7db3ccee3a5dbb8d3e5b434511ee5ee818 100644
--- a/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.h
+++ b/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.h
@@ -5,9 +5,10 @@
 #ifndef RemotePlayback_h
 #define RemotePlayback_h
 
+#include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/events/EventTarget.h"
-#include "core/frame/DOMWindowProperty.h"
+#include "core/frame/LocalFrameLifecycleObserver.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/modules/remoteplayback/WebRemotePlaybackClient.h"
 #include "public/platform/modules/remoteplayback/WebRemotePlaybackState.h"
@@ -24,7 +25,8 @@ class ScriptPromiseResolver;
 
 class RemotePlayback final
     : public EventTargetWithInlineData
-    , public DOMWindowProperty
+    , public ActiveScriptWrappable
+    , public LocalFrameLifecycleObserver

[haraken, 2016/06/02 23:53:52]

Would you help me understand why this needs to be LocalFrameLifecycleObserver?

[whywhat, 2016/06/03 13:29:38]

It was a natural switch from DOMWindowPropery to be able to access LocalFrame
(was m_frame, became frame()).
However, I only need it for executionContext() implementation so I switched to
ContextLifecycleObserver in the end.

     , private WebRemotePlaybackClient {
     DEFINE_WRAPPERTYPEINFO();
     USING_GARBAGE_COLLECTED_MIXIN(RemotePlayback);
@@ -40,6 +42,9 @@ public:
 
     String state() const;
 
+    // ActiveScriptWrappable implementation.
+    bool hasPendingActivity() const final;
+
     DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange);
 
     DECLARE_VIRTUAL_TRACE();