Move notifications used only in chrome/ out of content/.

chrome/browser/sessions/session_service.cc

Index: chrome/browser/sessions/session_service.cc
diff --git a/chrome/browser/sessions/session_service.cc b/chrome/browser/sessions/session_service.cc
index 317c31d26c348afad521ca63b4b68b3baab08841..4eb3f6508d6116ba4cebee74166965db815136c2 100644
--- a/chrome/browser/sessions/session_service.cc
+++ b/chrome/browser/sessions/session_service.cc
@@ -503,9 +503,9 @@ void SessionService::Save() {
 
 void SessionService::Init() {
   // Register for the notifications we're interested in.
-  registrar_.Add(this, content::NOTIFICATION_TAB_PARENTED,
+  registrar_.Add(this, chrome::NOTIFICATION_TAB_PARENTED,
                  content::NotificationService::AllSources());
-  registrar_.Add(this, content::NOTIFICATION_TAB_CLOSED,
+  registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
                  content::NotificationService::AllSources());
   registrar_.Add(this, content::NOTIFICATION_NAV_LIST_PRUNED,
                  content::NotificationService::AllSources());
@@ -582,7 +582,7 @@ void SessionService::Observe(int type,
       break;
     }
 
-    case content::NOTIFICATION_TAB_PARENTED: {
+    case chrome::NOTIFICATION_TAB_PARENTED: {
       TabContentsWrapper* tab =
           content::Source<TabContentsWrapper>(source).ptr();
       if (tab->profile() != profile())
@@ -598,17 +598,17 @@ void SessionService::Observe(int type,
       break;
     }
 
-    case content::NOTIFICATION_TAB_CLOSED: {
+    case content::NOTIFICATION_WEB_CONTENTS_DESTROYED: {
       TabContentsWrapper* tab =
           TabContentsWrapper::GetCurrentWrapperForContents(
-              content::Source<content::NavigationController>(
-                  source).ptr()->GetWebContents());
+              content::Source<content::WebContents>(source).ptr());
       if (!tab || tab->profile() != profile())
         return;
       TabClosed(tab->restore_tab_helper()->window_id(),
                 tab->restore_tab_helper()->session_id(),
                 tab->web_contents()->GetClosedByUserGesture());
-      RecordSessionUpdateHistogramData(content::NOTIFICATION_TAB_CLOSED,
+      RecordSessionUpdateHistogramData(
+          content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
           &last_updated_tab_closed_time_);
       break;
     }
@@ -1511,7 +1511,7 @@ void SessionService::RecordSessionUpdateHistogramData(int type,
         RecordUpdatedSaveTime(delta, use_long_period);
         RecordUpdatedSessionNavigationOrTab(delta, use_long_period);
         break;
-      case content::NOTIFICATION_TAB_CLOSED:
+      case content::NOTIFICATION_WEB_CONTENTS_DESTROYED:
         RecordUpdatedTabClosed(delta, use_long_period);
         RecordUpdatedSessionNavigationOrTab(delta, use_long_period);
         break;