[Background Sync] Use GcmNetworkManager to start the browser for sync events.

content/public/android/BUILD.gn

 # 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 
 content_jni_gypi_values = exec_script("//build/gypi_to_gn.py",
                                       [ rebase_path("../../content_jni.gypi") ],
                                       "scope",
@@ skipping 24 matching lines @@
     "//device/battery/android:battery_monitor_android",
     "//device/battery:mojo_bindings_java",
     "//device/bluetooth:java",
     "//device/vibration/android:vibration_manager_android",
     "//device/vibration:mojo_bindings_java",
     "//media/base/android:media_java",
     "//media/midi:midi_java",
     "//mojo/android:system_java",
     "//net/android:net_java",
     "//third_party/android_tools:android_support_v13_java",
+    "//third_party/android_tools:google_play_services_default_java",
     "//third_party/mojo/src/mojo/public/java:bindings",
     "//third_party/mojo/src/mojo/public/java:system",
     "//ui/accessibility:ui_accessibility_java",
     "//ui/android:ui_java",
     "//third_party/jsr-305:jsr_305_javalib",
     "//third_party/WebKit/public:blink_headers_java",
 
     #"//content:content_common",
   ]
 
@@ skipping 149 matching lines @@
 # GYP: //content/content_tests.gypi:content_junit_tests
 junit_binary("content_junit_tests") {
   java_files = [ "junit/src/org/chromium/content/browser/input/GamepadMappingsTest.java" ]
   deps = [
     ":content_java",
     "//base:base_java",
     "//base:base_java_test_support",
   ]
 }
 # TODO(GYP): content_icudata