Plumbing toward transitioning remote frame back to a local frame.

Source/core/core.gypi

 {
     'includes': [
       'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/Animation.idl',
             'animation/AnimationEffect.idl',
             'animation/AnimationPlayer.idl',
@@ skipping 1189 matching lines @@
             'frame/NavigatorCPU.h',
             'frame/NavigatorID.cpp',
             'frame/NavigatorID.h',
             'frame/NavigatorLanguage.cpp',
             'frame/NavigatorLanguage.h',
             'frame/NavigatorOnLine.h',
             'frame/PinchViewport.cpp',
             'frame/PinchViewport.h',
             'frame/RemoteFrame.cpp',
             'frame/RemoteFrame.h',
+            'frame/RemoteFrameClient.h',
             'frame/RemoteFrameView.cpp',
             'frame/RemoteFrameView.h',
             'frame/Screen.cpp',
             'frame/Screen.h',
             'frame/Settings.cpp',
             'frame/SettingsDelegate.cpp',
             'frame/SettingsDelegate.h',
             'frame/SmartClip.cpp',
             'frame/SmartClip.h',
             'frame/SubresourceIntegrity.cpp',
@@ skipping 2351 matching lines @@
             'rendering/shapes/BoxShapeTest.cpp',
             'rendering/style/OutlineValueTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'streams/ReadableStreamTest.cpp',
             'testing/UnitTestHelpers.cpp',
             'testing/UnitTestHelpers.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }