Add UMA metrics to track the source of homescreen icons on launch.

chrome/browser/android/shortcut_helper.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/shortcut_helper.h"
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 140 matching lines @@
   if (icon_bitmap.getSize())
     java_bitmap = gfx::ConvertToJavaBitmap(&icon_bitmap);
 
   Java_ShortcutHelper_addShortcut(
       env,
       base::android::GetApplicationContext(),
       java_url.obj(),
       java_title.obj(),
       java_bitmap.obj(),
       info.display == content::Manifest::DISPLAY_MODE_STANDALONE,
-      info.orientation);
+      info.orientation,
+      info.source);
 }
 
 void ShortcutHelper::RecordAddToHomescreen() {
   // Record that the shortcut has been added, so no banners will be shown
   // for this app.
   content::WebContents* web_contents = data_fetcher_->web_contents();
   if (!web_contents)
     return;
 
   AppBannerSettingsHelper::RecordBannerEvent(
       web_contents, web_contents->GetURL(),
       data_fetcher_->shortcut_info().url.spec(),
       AppBannerSettingsHelper::APP_BANNER_EVENT_DID_ADD_TO_HOMESCREEN,
       base::Time::Now());
 }