[PresentationAPI] renamed GetScreenAvailability to ListenForScreenAvailability for consistency

content/browser/presentation/presentation_service_impl.h

 // Copyright 2015 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_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_
 
 #include <deque>
 
 #include "base/basictypes.h"
@@ skipping 55 matching lines @@
           presentation::PresentationSessionState)>;
 
   // A helper data class used by PresentationServiceImpl to do bookkeeping
   // of currently registered screen availability listeners.
   // An instance of this class is a simple state machine that waits for both
   // the available bit and the Mojo callback to become available.
   // Once this happens, the Mojo callback will be invoked with the available
   // bit, and the state machine will reset.
   // The available bit is obtained from the embedder's media router.
   // The callback is obtained from the renderer via PresentationServiceImpl's
-  // GetScreenAvailability().
+  // ListenForScreenAvailability().
   class CONTENT_EXPORT ScreenAvailabilityContext
       : public PresentationScreenAvailabilityListener {
    public:
     explicit ScreenAvailabilityContext(
         const std::string& presentation_url);
     ~ScreenAvailabilityContext() override;
 
     // If available bit exists, |callback| will be invoked with the bit and
     // this state machine will reset.
     // Otherwise |callback| is saved for later use.
@@ skipping 57 matching lines @@
   // by this class.
   PresentationServiceImpl(
       RenderFrameHost* render_frame_host,
       WebContents* web_contents,
       PresentationServiceDelegate* delegate);
 
   // PresentationService implementation.
   void SetDefaultPresentationURL(
       const mojo::String& presentation_url,
       const mojo::String& presentation_id) override;
-  void GetScreenAvailability(
+  void ListenForScreenAvailability(
       const mojo::String& presentation_url,
       const ScreenAvailabilityMojoCallback& callback) override;
-  void OnScreenAvailabilityListenerRemoved(
+  void RemoveScreenAvailabilityListener(
       const mojo::String& presentation_url) override;
   void ListenForDefaultSessionStart(
       const DefaultSessionMojoCallback& callback) override;
   void StartSession(
       const mojo::String& presentation_url,
       const mojo::String& presentation_id,
       const NewSessionMojoCallback& callback) override;
   void JoinSession(
       const mojo::String& presentation_url,
       const mojo::String& presentation_id,
@@ skipping 74 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<PresentationServiceImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PresentationServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_