Factor Google Now welcome notifications out of DesktopNotificationService.

chrome/browser/notifications/extensions/extension_welcome_notification_unittest.cc

Index: chrome/browser/notifications/extensions/extension_welcome_notification_unittest.cc
diff --git a/chrome/browser/notifications/extension_welcome_notification_unittest.cc b/chrome/browser/notifications/extensions/extension_welcome_notification_unittest.cc
similarity index 98%
rename from chrome/browser/notifications/extension_welcome_notification_unittest.cc
rename to chrome/browser/notifications/extensions/extension_welcome_notification_unittest.cc
index 6e037ad5b94118c6cf6d09e727513718fdc75232..5e50bfe718a2c5947656a4272622b7e6983893f5 100644
--- a/chrome/browser/notifications/extension_welcome_notification_unittest.cc
+++ b/chrome/browser/notifications/extensions/extension_welcome_notification_unittest.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/notifications/extension_welcome_notification.h"
+#include "chrome/browser/notifications/extensions/extension_welcome_notification.h"
 
 #include <string>
 
@@ -23,8 +23,6 @@
 #include "ui/message_center/fake_message_center.h"
 #include "ui/message_center/notification.h"
 
-const char kChromeNowExtensionID[] = "pafkbggdmjlpgkdkcbjmhmfcdpncadgh";
-
 class MockMessageCenter : public message_center::FakeMessageCenter {
  public:
   MockMessageCenter()
@@ -140,8 +138,8 @@ class ExtensionWelcomeNotificationTest : public testing::Test {
         new base::ThreadTaskRunnerHandle(task_runner_));
     profile_.reset(new TestingProfile());
     delegate_ = new WelcomeNotificationDelegate();
-    welcome_notification_ = ExtensionWelcomeNotification::Create(
-        kChromeNowExtensionID, profile_.get(), delegate_);
+    welcome_notification_ = ExtensionWelcomeNotification::Create(profile_.get(),
+                                                                 delegate_);
   }
 
   virtual void TearDown() {
@@ -166,8 +164,9 @@ class ExtensionWelcomeNotificationTest : public testing::Test {
   void ShowChromeNowNotification() const {
     ShowNotification(
         "ChromeNowNotification",
-        message_center::NotifierId(message_center::NotifierId::APPLICATION,
-                                   kChromeNowExtensionID));
+        message_center::NotifierId(
+            message_center::NotifierId::APPLICATION,
+            ExtensionWelcomeNotification::kChromeNowExtensionID));
   }
 
   void ShowRegularNotification() const {