Hook up CDM calls in CdmWrapper.

ppapi/c/private/ppp_content_decryptor_private.h

Index: ppapi/c/private/ppp_content_decryptor_private.h
diff --git a/ppapi/c/private/ppp_content_decryptor_private.h b/ppapi/c/private/ppp_content_decryptor_private.h
index 45c8c0d4519e858d6f1dbbaf8fa7bd07fc2f99de..24987a4bd51da018adcce8a137f906932a731539 100644
--- a/ppapi/c/private/ppp_content_decryptor_private.h
+++ b/ppapi/c/private/ppp_content_decryptor_private.h
@@ -4,7 +4,7 @@
  */
 
 /* From private/ppp_content_decryptor_private.idl,
- *   modified Fri Aug 17 09:07:21 2012.
+ *   modified Tue Aug 21 18:37:34 2012.
  */
 
 #ifndef PPAPI_C_PRIVATE_PPP_CONTENT_DECRYPTOR_PRIVATE_H_
@@ -27,7 +27,7 @@
  * @file
  * This file defines the <code>PPP_ContentDecryptor_Private</code>
  * interface. Note: This is a special interface, only to be used for Content
- * Decryption Modules, not normal plugins.
+ * Decryption Modules (CDM), not normal plugins.
  */
 
 
@@ -59,6 +59,11 @@ struct PPP_ContentDecryptor_Private_0_1 {
    * @param[in] init_data A <code>PP_Var</code> of type
    * <code>PP_VARTYPE_ARRAYBUFFER</code> containing container specific
    * initialization data.
+   *
+   * @return <code>PP_TRUE</code> if this call can be forwarded to the CDM
+   * successfully. <code>PP_TRUE</code> otherwise. Once the call reaches the
+   * CDM, the call result/stuatus can always be reported asynchronously through
+   * the <code>PPB_ContentDecryptor_Private</code> interface.
    */
   PP_Bool (*GenerateKeyRequest)(PP_Instance instance,
                                 struct PP_Var key_system,
@@ -84,6 +89,11 @@ struct PPP_ContentDecryptor_Private_0_1 {
    * @param[in] init_data A <code>PP_Var</code> of type
    * <code>PP_VARTYPE_ARRAYBUFFER</code> containing container specific
    * initialization data.
+   *
+   * @return <code>PP_TRUE</code> if this call can be forwarded to the CDM
+   * successfully. <code>PP_TRUE</code> otherwise. Once the call reaches the
+   * CDM, the call result/stuatus can always be reported asynchronously through
+   * the <code>PPB_ContentDecryptor_Private</code> interface.
    */
   PP_Bool (*AddKey)(PP_Instance instance,
                     struct PP_Var session_id,
@@ -94,6 +104,11 @@ struct PPP_ContentDecryptor_Private_0_1 {
    *
    * @param[in] session_id A <code>PP_Var</code> of type
    * <code>PP_VARTYPE_STRING</code> containing the session ID.
+   *
+   * @return <code>PP_TRUE</code> if this call can be forwarded to the CDM
+   * successfully. <code>PP_TRUE</code> otherwise. Once the call reaches the
+   * CDM, the call result/stuatus can always be reported asynchronously through
+   * the <code>PPB_ContentDecryptor_Private</code> interface.
    */
   PP_Bool (*CancelKeyRequest)(PP_Instance instance, struct PP_Var session_id);
   /**
@@ -109,6 +124,11 @@ struct PPP_ContentDecryptor_Private_0_1 {
    * @param[in] encrypted_block_info A <code>PP_EncryptedBlockInfo</code> that
    * contains all auxiliary information needed for decryption of the
    * <code>encrypted_block</code>.
+   *
+   * @return <code>PP_TRUE</code> if this call can be forwarded to the CDM
+   * successfully. <code>PP_TRUE</code> otherwise. Once the call reaches the
+   * CDM, the call result/stuatus can always be reported asynchronously through
+   * the <code>PPB_ContentDecryptor_Private</code> interface.
    */
   PP_Bool (*Decrypt)(
       PP_Instance instance,
@@ -130,6 +150,11 @@ struct PPP_ContentDecryptor_Private_0_1 {
    * @param[in] encrypted_block_info A <code>PP_EncryptedBlockInfo</code> that
    * contains all auxiliary information needed for decryption of the
    * <code>encrypted_block</code>.
+   *
+   * @return <code>PP_TRUE</code> if this call can be forwarded to the CDM
+   * successfully. <code>PP_TRUE</code> otherwise. Once the call reaches the
+   * CDM, the call result/stuatus can always be reported asynchronously through
+   * the <code>PPB_ContentDecryptor_Private</code> interface.
    */
   PP_Bool (*DecryptAndDecode)(
       PP_Instance instance,