Rename WebCore to blink in Modules

Source/modules/push_messaging/PushError.cpp

Index: Source/modules/push_messaging/PushError.cpp
diff --git a/Source/modules/push_messaging/PushError.cpp b/Source/modules/push_messaging/PushError.cpp
index 6a5d8707931cdf45bf0ddfb48f0978fbdaa243c5..af263b0cf200509219531eab95bd838046fbaf63 100644
--- a/Source/modules/push_messaging/PushError.cpp
+++ b/Source/modules/push_messaging/PushError.cpp
@@ -8,7 +8,7 @@
 #include "core/dom/ExceptionCode.h"
 #include "wtf/OwnPtr.h"
 
-namespace WebCore {
+namespace blink {
 
 PassRefPtrWillBeRawPtr<DOMException> PushError::from(ScriptPromiseResolver*, WebType* webErrorRaw)
 {
@@ -23,4 +23,4 @@ PassRefPtrWillBeRawPtr<DOMException> PushError::from(ScriptPromiseResolver*, Web
     return DOMException::create(UnknownError);
 }
 
-} // namespace WebCore
+} // namespace blink