Rename WebCore namespace to blink in Public

public/web/WebScopedWindowFocusAllowedIndicator.h

Index: public/web/WebScopedWindowFocusAllowedIndicator.h
diff --git a/public/web/WebScopedWindowFocusAllowedIndicator.h b/public/web/WebScopedWindowFocusAllowedIndicator.h
index f3f07b9a37e6b702144a0ac3672fa871dd545780..f3cc4afcd2430ce0f88a2fe96a0632e0ca697a30 100644
--- a/public/web/WebScopedWindowFocusAllowedIndicator.h
+++ b/public/web/WebScopedWindowFocusAllowedIndicator.h
@@ -33,7 +33,7 @@
 
 #include "public/platform/WebPrivateOwnPtr.h"
 
-namespace WebCore {
+namespace blink {
 class WindowFocusAllowedIndicator;
 }
 
@@ -48,7 +48,7 @@ private:
     BLINK_EXPORT void initialize();
     BLINK_EXPORT void reset();
 
-    WebPrivateOwnPtr<WebCore::WindowFocusAllowedIndicator> m_indicator;
+    WebPrivateOwnPtr<blink::WindowFocusAllowedIndicator> m_indicator;
 };
 
 }