MSE: Start removing Blink-side support for LegacyFrameProcessor

public/platform/WebMediaSource.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebMediaSource_h
 #define WebMediaSource_h
 
+#include "WebCommon.h"
 #include "WebTimeRange.h"
 #include "WebURL.h"
 
 namespace blink {
 
 class WebSourceBuffer;
 
 class WebMediaSource {
 public:
     enum AddStatus {
         AddStatusOk,
         AddStatusNotSupported,
         AddStatusReachedIdLimit
     };
 
     enum EndOfStreamStatus {
         EndOfStreamStatusNoError,
         EndOfStreamStatusNetworkError,
         EndOfStreamStatusDecodeError,
     };
 
     enum FrameProcessorChoice {
         UseLegacyFrameProcessor,
         UseNewFrameProcessor
     };
 
     virtual ~WebMediaSource() { }
-    virtual AddStatus addSourceBuffer(const WebString& type, const WebVector<WebString>& codecs, const FrameProcessorChoice, WebSourceBuffer**) = 0;
+    // FIXME: Remove addSourceBuffer() that has FrameProcessorChoice, and remove
+    // the default implementations for addSourceBuffer() once Chromium
+    // implementation of the addSourceBuffer() with no FrameProcessorChoice has
+    // landed. See http://crbug.com/249422.
+    virtual AddStatus addSourceBuffer(const WebString& type, const WebVector<WebString>& codecs, const FrameProcessorChoice, WebSourceBuffer** webSourceBuffer)
+    {
+        // This default implementation should never be called for real.
+        BLINK_ASSERT_NOT_REACHED();
+        return AddStatusReachedIdLimit;
+    }
+    virtual AddStatus addSourceBuffer(const WebString& type, const WebVector<WebString>& codecs, WebSourceBuffer** webSourceBuffer)
+    {
+        return addSourceBuffer(type, codecs, WebMediaSource::UseNewFrameProcessor, webSourceBuffer);
+    }
+
     virtual double duration() = 0;
     virtual void setDuration(double) = 0;
     virtual void markEndOfStream(EndOfStreamStatus) = 0;
     virtual void unmarkEndOfStream() = 0;
 };
 
 } // namespace blink
 
 #endif