Return void from all PPP CDM API interface methods

webkit/media/crypto/ppapi_decryptor.cc

Index: webkit/media/crypto/ppapi_decryptor.cc
diff --git a/webkit/media/crypto/ppapi_decryptor.cc b/webkit/media/crypto/ppapi_decryptor.cc
index ec19cc1d56110f652ce2be33835d368ea3f4cbb1..65d327fc6a2ddd7e34003e2d8d9058ffe8afdf6d 100644
--- a/webkit/media/crypto/ppapi_decryptor.cc
+++ b/webkit/media/crypto/ppapi_decryptor.cc
@@ -41,14 +41,10 @@ bool PpapiDecryptor::GenerateKeyRequest(const std::string& key_system,
 
   // TODO(xhwang): Finalize the data type for |init_data| to avoid unnecessary
   // data type conversions.
-  if (!cdm_plugin_->GenerateKeyRequest(
+  cdm_plugin_->GenerateKeyRequest(
       key_system,
       std::string(reinterpret_cast<const char*>(init_data),
-                  init_data_length))) {
-    ReportFailureToCallPlugin(key_system, "");
-    return false;
-  }
-
+                  init_data_length));
   return true;
 }
 
@@ -62,13 +58,11 @@ void PpapiDecryptor::AddKey(const std::string& key_system,
   DCHECK(render_loop_proxy_->BelongsToCurrentThread());
   DCHECK(cdm_plugin_);
 
-  if (!cdm_plugin_->AddKey(session_id,
-                           std::string(reinterpret_cast<const char*>(key),
-                                       key_length),
-                           std::string(reinterpret_cast<const char*>(init_data),
-                                       init_data_length))) {
-    ReportFailureToCallPlugin(key_system, session_id);
-  }
+  cdm_plugin_->AddKey(session_id,
+                      std::string(reinterpret_cast<const char*>(key),
+                                  key_length),
+                      std::string(reinterpret_cast<const char*>(init_data),
+                                  init_data_length));
 }
 
 void PpapiDecryptor::CancelKeyRequest(const std::string& key_system,
@@ -77,8 +71,7 @@ void PpapiDecryptor::CancelKeyRequest(const std::string& key_system,
   DCHECK(render_loop_proxy_->BelongsToCurrentThread());
   DCHECK(cdm_plugin_);
 
-  if (!cdm_plugin_->CancelKeyRequest(session_id))
-    ReportFailureToCallPlugin(key_system, session_id);
+  cdm_plugin_->CancelKeyRequest(session_id);
 }
 
 void PpapiDecryptor::Decrypt(
@@ -93,17 +86,10 @@ void PpapiDecryptor::Decrypt(
     return;
   }
 
-  if (!cdm_plugin_->Decrypt(encrypted, decrypt_cb))
-    decrypt_cb.Run(kError, NULL);
+  cdm_plugin_->Decrypt(encrypted, decrypt_cb);
 }
 
 void PpapiDecryptor::Stop() {
 }
 
-void PpapiDecryptor::ReportFailureToCallPlugin(const std::string& key_system,
-                                               const std::string& session_id) {
-  DVLOG(1) << "Failed to call plugin.";
-  client_->KeyError(key_system, session_id, kUnknownError, 0);
-}
-
 }  // namespace webkit_media