Remove DemuxerStream::GetAVStream() once and for all.

media/base/video_decoder_config.h

Index: media/base/video_decoder_config.h
diff --git a/media/base/video_decoder_config.h b/media/base/video_decoder_config.h
index 44182df4fbd74105ef8a2dd1390d50aabfa7d0d9..3bd2d05bd2dc4a25485418a6501344b7689cea6c 100644
--- a/media/base/video_decoder_config.h
+++ b/media/base/video_decoder_config.h
@@ -42,6 +42,7 @@ class MEDIA_EXPORT VideoDecoderConfig {
                      const gfx::Size& coded_size,
                      const gfx::Rect& visible_rect,
                      int frame_rate_numerator, int frame_rate_denominator,
+                     int aspect_ratio_numerator, int aspect_ratio_denominator,
                      const uint8* extra_data, size_t extra_data_size);
 
   ~VideoDecoderConfig();
@@ -52,6 +53,7 @@ class MEDIA_EXPORT VideoDecoderConfig {
                   const gfx::Size& coded_size,
                   const gfx::Rect& visible_rect,
                   int frame_rate_numerator, int frame_rate_denominator,
+                  int aspect_ratio_numerator, int aspect_ratio_denominator,
                   const uint8* extra_data, size_t extra_data_size);
 
   // Returns true if this object has appropriate configuration values, false
@@ -71,10 +73,20 @@ class MEDIA_EXPORT VideoDecoderConfig {
   gfx::Rect visible_rect() const;
 
   // Frame rate in seconds expressed as a fraction.
-  // TODO(scherkus): fairly certain decoders don't require frame rates.
+  //
+  // This information is required to properly timestamp video frames for
+  // codecs that contain repeated frames, such as found in H.264's
+  // supplemental enhancement information.
   int frame_rate_numerator() const;
   int frame_rate_denominator() const;
 
+  // Aspect ratio of the decoded video frame expressed as a fraction.
+  //
+  // TODO(scherkus): think of a better way to avoid having video decoders
+  // handle tricky aspect ratio dimension calculations.
+  int aspect_ratio_numerator() const;
+  int aspect_ratio_denominator() const;
+
   // Optional byte data required to initialize video decoders, such as H.264
   // AAVC data.
   uint8* extra_data() const;
@@ -91,6 +103,9 @@ class MEDIA_EXPORT VideoDecoderConfig {
   int frame_rate_numerator_;
   int frame_rate_denominator_;
 
+  int aspect_ratio_numerator_;
+  int aspect_ratio_denominator_;
+
   scoped_array<uint8> extra_data_;
   size_t extra_data_size_;