Add video decoding methods in Decryptor and add DecryptingVideoDecoder.

media/crypto/aes_decryptor.cc

Index: media/crypto/aes_decryptor.cc
diff --git a/media/crypto/aes_decryptor.cc b/media/crypto/aes_decryptor.cc
index 0fdfa2d2ea56dcae2c478d5574e38b05f40d02aa..5592126c63944bda3b326c35159467069a50a487 100644
--- a/media/crypto/aes_decryptor.cc
+++ b/media/crypto/aes_decryptor.cc
@@ -14,6 +14,8 @@
 #include "media/base/decoder_buffer.h"
 #include "media/base/decrypt_config.h"
 #include "media/base/decryptor_client.h"
+#include "media/base/video_decoder_config.h"
+#include "media/base/video_frame.h"
 
 namespace media {
 
@@ -232,6 +234,26 @@ void AesDecryptor::Decrypt(const scoped_refptr<DecoderBuffer>& encrypted,
 void AesDecryptor::Stop() {
 }
 
+void AesDecryptor::InitializeVideoDecoder(const VideoDecoderConfig& config,
+                                          const InitializeCB& init_cb) {
+  init_cb.Run(false);

[ddorwin, 2012/09/21 00:36:08]

Why not NOTREACHED();?
If this is used to determine whether this decryptor supports D&D, that might be
worth a comment.

[xhwang, 2012/09/25 23:52:32]

Done.

+}
+
+void AesDecryptor::DecryptAndDecodeVideo(
+    const scoped_refptr<DecoderBuffer>& encrypted,
+    const VideoDecodeCB& video_decode_cb) {
+  NOTREACHED();
+  video_decode_cb.Run(kError, NULL);
+}
+
+void AesDecryptor::ResetVideoDecoder() {
+  NOTREACHED();
+}
+
+void AesDecryptor::StopVideoDecoder() {
+  NOTREACHED();
+}
+
 void AesDecryptor::SetKey(const std::string& key_id,
                           scoped_ptr<DecryptionKey> decryption_key) {
   base::AutoLock auto_lock(key_map_lock_);