Add UMA reporting to CdmPromise.

content/renderer/media/webcontentdecryptionmodulesession_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/webcontentdecryptionmodulesession_impl.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/renderer/media/cdm_session_adapter.h"
 #include "media/base/cdm_promise.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 
 namespace content {
 
+const char kCreateSessionUMAName[] = "createSession";
+
 // For backwards compatibility with blink not using
 // WebContentDecryptionModuleResult, reserve an index for |outstanding_results_|
 // that will not be used when adding a WebContentDecryptionModuleResult.
 // TODO(jrummell): Remove once blink always uses
 // WebContentDecryptionModuleResult.
 const uint32 kReservedIndex = 0;
 
 static blink::WebContentDecryptionModuleException ConvertException(
     media::MediaKeys::Exception exception_code) {
   switch (exception_code) {
@@ skipping 72 matching lines @@
   DLOG_IF(WARNING, init_data_type_as_ascii.find('/') != std::string::npos)
       << "init_data_type '" << init_data_type_as_ascii
       << "' may be a MIME type";
 
   scoped_ptr<media::NewSessionCdmPromise> promise(
       new media::NewSessionCdmPromise(
           base::Bind(&WebContentDecryptionModuleSessionImpl::SessionCreated,
                      weak_ptr_factory_.GetWeakPtr(),
                      kReservedIndex),
           base::Bind(&WebContentDecryptionModuleSessionImpl::OnSessionError,
-                     weak_ptr_factory_.GetWeakPtr())));
+                     weak_ptr_factory_.GetWeakPtr()),
+          adapter_->GetKeySystemUMAPrefix() + kCreateSessionUMAName));
   adapter_->InitializeNewSession(init_data_type_as_ascii,
                                  init_data,
                                  init_data_length,
                                  media::MediaKeys::TEMPORARY_SESSION,
                                  promise.Pass());
 }
 
 void WebContentDecryptionModuleSessionImpl::update(const uint8* response,
                                                    size_t response_length) {
   DCHECK(response);
@@ skipping 40 matching lines @@
       << "init_data_type '" << init_data_type_as_ascii
       << "' may be a MIME type";
 
   scoped_ptr<media::NewSessionCdmPromise> promise(
       new media::NewSessionCdmPromise(
           base::Bind(&WebContentDecryptionModuleSessionImpl::SessionCreated,
                      weak_ptr_factory_.GetWeakPtr(),
                      result_index),
           base::Bind(&WebContentDecryptionModuleSessionImpl::SessionError,
                      weak_ptr_factory_.GetWeakPtr(),
-                     result_index)));
+                     result_index),
+          adapter_->GetKeySystemUMAPrefix() + kCreateSessionUMAName));
   adapter_->InitializeNewSession(init_data_type_as_ascii,
                                  init_data,
                                  init_data_length,
                                  media::MediaKeys::TEMPORARY_SESSION,
                                  promise.Pass());
 }
 
 void WebContentDecryptionModuleSessionImpl::update(
     const uint8* response,
     size_t response_length,
@@ skipping 116 matching lines @@
 
 uint32 WebContentDecryptionModuleSessionImpl::AddResult(
     blink::WebContentDecryptionModuleResult result) {
   uint32 result_index = next_available_result_index_++;
   DCHECK(result_index != kReservedIndex);
   outstanding_results_.insert(std::make_pair(result_index, result));
   return result_index;
 }
 
 }  // namespace content