More consistency in m_v_s_bridge.cc.

chrome/browser/android/ntp/most_visited_sites_bridge.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 "chrome/browser/android/ntp/most_visited_sites_bridge.h"
 
 #include <utility>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 51 matching lines @@
     : observer_(env, obj) {}
 
 void MostVisitedSitesBridge::Observer::OnMostVisitedURLsAvailable(
     const MostVisitedSites::SuggestionsVector& suggestions) {
   JNIEnv* env = AttachCurrentThread();
   std::vector<base::string16> titles;
   std::vector<std::string> urls;
   std::vector<std::string> whitelist_icon_paths;
   titles.reserve(suggestions.size());
   urls.reserve(suggestions.size());
+  whitelist_icon_paths.reserve(suggestions.size());
   for (const auto& suggestion : suggestions) {
-    titles.push_back(suggestion.title);
-    urls.push_back(suggestion.url.spec());
-    whitelist_icon_paths.push_back(suggestion.whitelist_icon_path.value());
+    titles.emplace_back(suggestion.title);
+    urls.emplace_back(suggestion.url.spec());
+    whitelist_icon_paths.emplace_back(suggestion.whitelist_icon_path.value());
   }
   Java_MostVisitedURLsObserver_onMostVisitedURLsAvailable(
       env, observer_.obj(), ToJavaArrayOfStrings(env, titles).obj(),
       ToJavaArrayOfStrings(env, urls).obj(),
       ToJavaArrayOfStrings(env, whitelist_icon_paths).obj());
 }
 
 void MostVisitedSitesBridge::Observer::OnPopularURLsAvailable(
     const MostVisitedSites::PopularSitesVector& sites) {
   JNIEnv* env = AttachCurrentThread();
@@ skipping 74 matching lines @@
 }
 
 static jlong Init(JNIEnv* env,
                   const JavaParamRef<jobject>& obj,
                   const JavaParamRef<jobject>& jprofile) {
   MostVisitedSitesBridge* most_visited_sites =
       new MostVisitedSitesBridge(
           ProfileAndroid::FromProfileAndroid(jprofile));
   return reinterpret_cast<intptr_t>(most_visited_sites);
 }