Move notifications only used in chrome/ to chrome/.

chrome/browser/extensions/extension_tab_id_map.cc

Index: chrome/browser/extensions/extension_tab_id_map.cc
diff --git a/chrome/browser/extensions/extension_tab_id_map.cc b/chrome/browser/extensions/extension_tab_id_map.cc
index 99484056807369e1c4fd8d1ce5a7519404ed1769..9f590dcf1fa4e046eb11c1560394bf9fc860bd8f 100644
--- a/chrome/browser/extensions/extension_tab_id_map.cc
+++ b/chrome/browser/extensions/extension_tab_id_map.cc
@@ -47,7 +47,8 @@ class ExtensionTabIdMap::TabObserver : public content::NotificationObserver {
 
 ExtensionTabIdMap::TabObserver::TabObserver() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  registrar_.Add(this, content::NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB,
+  registrar_.Add(this,
+                 content::NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED,
                  content::NotificationService::AllBrowserContextsAndSources());
   registrar_.Add(this, content::NOTIFICATION_RENDER_VIEW_HOST_DELETED,
                  content::NotificationService::AllBrowserContextsAndSources());
@@ -65,7 +66,7 @@ void ExtensionTabIdMap::TabObserver::Observe(
     int type, const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   switch (type) {
-    case content::NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB: {
+    case content::NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED: {
       WebContents* contents = content::Source<WebContents>(source).ptr();
       TabContents* tab = TabContents::FromWebContents(contents);
       if (!tab)