Eliminate MediaPlayer & MediaPlayerClient abstractions

public/platform/WebMediaPlayerClient.h

Index: public/platform/WebMediaPlayerClient.h
diff --git a/public/platform/WebMediaPlayerClient.h b/public/platform/WebMediaPlayerClient.h
index 8f5e7ff15528050751c6b6e0344e0f55e9dec48e..0d23e52061e8a11e89f90659fd30438d0f12c980 100644
--- a/public/platform/WebMediaPlayerClient.h
+++ b/public/platform/WebMediaPlayerClient.h
@@ -43,15 +43,6 @@ class WebURL;
 
 class WebMediaPlayerClient {
 public:
-    enum MediaKeyErrorCode {
-        MediaKeyErrorCodeUnknown = 1,
-        MediaKeyErrorCodeClient,
-        MediaKeyErrorCodeService,
-        MediaKeyErrorCodeOutput,
-        MediaKeyErrorCodeHardwareChange,
-        MediaKeyErrorCodeDomain,
-    };
-
     enum VideoTrackKind {
         VideoTrackKindNone,
         VideoTrackKindAlternative,
@@ -79,12 +70,6 @@ public:
     virtual void durationChanged() = 0;
     virtual void sizeChanged() = 0;
     virtual void playbackStateChanged() = 0;
-    virtual void keyAdded(const WebString& keySystem, const WebString& sessionId) = 0;
-    virtual void keyError(const WebString& keySystem, const WebString& sessionId, MediaKeyErrorCode, unsigned short systemCode) = 0;
-    virtual void keyMessage(const WebString& keySystem, const WebString& sessionId, const unsigned char* message, unsigned messageLength, const WebURL& defaultURL) = 0;
-    virtual void encrypted(WebEncryptedMediaInitDataType, const unsigned char* initData, unsigned initDataLength) = 0;
-    virtual void didBlockPlaybackWaitingForKey() = 0;
-    virtual void didResumePlaybackBlockedForKey() = 0;
     virtual void setWebLayer(WebLayer*) = 0;
     virtual WebMediaPlayer::TrackId addAudioTrack(const WebString& id, AudioTrackKind, const WebString& label, const WebString& language, bool enabled) = 0;
     virtual void removeAudioTrack(WebMediaPlayer::TrackId) = 0;
@@ -93,8 +78,8 @@ public:
     virtual void addTextTrack(WebInbandTextTrack*) = 0;
     virtual void removeTextTrack(WebInbandTextTrack*) = 0;
     virtual void mediaSourceOpened(WebMediaSource*) = 0;
-    virtual void requestFullscreen() = 0;
-    virtual void requestSeek(double) = 0;
+    virtual void mediaPlayerRequestFullscreen() = 0;
+    virtual void mediaPlayerRequestSeek(double) = 0;
     virtual void remoteRouteAvailabilityChanged(bool) = 0;
     virtual void connectedToRemoteDevice() = 0;
     virtual void disconnectedFromRemoteDevice() = 0;