Rename WebCore to blink in Modules

Source/modules/push_messaging/PushController.h

Index: Source/modules/push_messaging/PushController.h
diff --git a/Source/modules/push_messaging/PushController.h b/Source/modules/push_messaging/PushController.h
index 15a338dfffb717e228ef23184d9abae4174d9fdd..fbd1aa70c00a15299fc862f0ff11929ca1fad853 100644
--- a/Source/modules/push_messaging/PushController.h
+++ b/Source/modules/push_messaging/PushController.h
@@ -15,7 +15,7 @@ namespace blink {
 class WebPushClient;
 } // namespace blink
 
-namespace WebCore {
+namespace blink {
 
 class PushController FINAL : public NoBaseWillBeGarbageCollected<PushController>, public WillBeHeapSupplement<Page> {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(PushController);
@@ -39,6 +39,6 @@ private:
 
 void providePushControllerTo(Page&, blink::WebPushClient*);
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // PushController_h