Update PPP side of Pepper CDM API to support video decoding.

webkit/plugins/ppapi/ppapi_plugin_instance.h

Index: webkit/plugins/ppapi/ppapi_plugin_instance.h
diff --git a/webkit/plugins/ppapi/ppapi_plugin_instance.h b/webkit/plugins/ppapi/ppapi_plugin_instance.h
index be8f76b264787c36abc4372bceb7ff56f35b4f96..2aeedb7f32a4f57531037cfcc7ba4b857eae825d 100644
--- a/webkit/plugins/ppapi/ppapi_plugin_instance.h
+++ b/webkit/plugins/ppapi/ppapi_plugin_instance.h
@@ -251,6 +251,7 @@ class WEBKIT_PLUGINS_EXPORT PluginInstance :
   void Graphics3DContextLost();
 
   // Provides access to PPP_ContentDecryptor_Private.
+  // Note: These methods can be used with unecrypted data.

[ddorwin, 2012/10/02 05:36:50]

Really, it's jus the D&D method(s) that this makes sense for. And it should be
that unencrypted data may be _passed_ to them.

[Tom Finegan, 2012/10/04 02:22:12]

Done, I think. Moved comment above PluginInstance::DecryptAndDecode in the cc
file. If that needs to change, we can fix it when we do the audio side.

[ddorwin, 2012/10/04 16:37:09]

The cc comment is fine, but I meant this comment should be above
DecryptAndDecodeFrame (and DecryptAndDecodeSample). Not a big deal; we can fix
it later.

   // TODO(tomfinegan): Move decryptor methods to delegate class.
   void set_decrypt_client(media::DecryptorClient* client);
   bool GenerateKeyRequest(const std::string& key_system,
@@ -262,8 +263,8 @@ class WEBKIT_PLUGINS_EXPORT PluginInstance :
   bool Decrypt(const scoped_refptr<media::DecoderBuffer>& encrypted_buffer,
                const media::Decryptor::DecryptCB& decrypt_cb);
   // TODO(xhwang): Update this when we need to support decrypt and decode.
-  bool DecryptAndDecode(
-      const scoped_refptr<media::DecoderBuffer>& encrypted_buffer,
+  bool DecryptAndDecodeFrame(
+      const scoped_refptr<media::DecoderBuffer>& encrypted_frame,
       const media::Decryptor::DecryptCB& decrypt_cb);
 
   // There are 2 implementations of the fullscreen interface