[Manifest] Add metrics recording.

content/renderer/manifest/manifest_parser.cc

 // Copyright 2014 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/manifest/manifest_parser.h"
 
 #include "base/json/json_reader.h"
 #include "base/strings/nullable_string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "content/public/common/manifest.h"
+#include "content/renderer/manifest/manifest_uma_util.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace content {
 
 namespace {
 
 enum TrimType {
   Trim,
   NoTrim
 };
@@ skipping 259 matching lines @@
 
 } // anonymous namespace
 
 Manifest ManifestParser::Parse(const base::StringPiece& json,
                                const GURL& manifest_url,
                                const GURL& document_url) {
   scoped_ptr<base::Value> value(base::JSONReader::Read(json));
   if (!value) {
     // TODO(mlamouri): get the JSON parsing error and report it to the developer
     // console.
+    ManifestUmaUtil::ParseFailed();
     return Manifest();
   }
 
   if (value->GetType() != base::Value::TYPE_DICTIONARY) {
     // TODO(mlamouri): provide a custom message to the developer console.
+    ManifestUmaUtil::ParseFailed();
     return Manifest();
   }
 
   base::DictionaryValue* dictionary = 0;
   value->GetAsDictionary(&dictionary);
   if (!dictionary) {
     // TODO(mlamouri): provide a custom message to the developer console.
+    ManifestUmaUtil::ParseFailed();
     return Manifest();
   }
 
   Manifest manifest;
 
   manifest.name = ParseName(*dictionary);
   manifest.short_name = ParseShortName(*dictionary);
   manifest.start_url = ParseStartURL(*dictionary, manifest_url, document_url);
   manifest.display = ParseDisplay(*dictionary);
   manifest.orientation = ParseOrientation(*dictionary);
   manifest.icons = ParseIcons(*dictionary, manifest_url);
   manifest.gcm_sender_id = ParseGCMSenderID(*dictionary);
 
+  ManifestUmaUtil::ParseSucceeded(manifest);
+
   return manifest;
 }
 
 } // namespace content