[DevTools] ConsoleMessage storage moved from ConsoleAgent

Source/core/workers/WorkerGlobalScope.h

Index: Source/core/workers/WorkerGlobalScope.h
diff --git a/Source/core/workers/WorkerGlobalScope.h b/Source/core/workers/WorkerGlobalScope.h
index afca046ec0c79cdb00ebd07a0defc177a32756d2..88f27aebb79a3a1c221a7fdfb7f8b83579008fbd 100644
--- a/Source/core/workers/WorkerGlobalScope.h
+++ b/Source/core/workers/WorkerGlobalScope.h
@@ -35,6 +35,7 @@
 #include "core/frame/UseCounter.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/inspector/ConsoleMessage.h"
+#include "core/inspector/ConsoleMessageStorage.h"
 #include "core/workers/WorkerEventQueue.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
@@ -137,6 +138,8 @@ namespace blink {
         using SecurityContext::securityOrigin;
         using SecurityContext::contentSecurityPolicy;
 
+        ConsoleMessageStorage* messageStorage();
+
         virtual void trace(Visitor*) OVERRIDE;
 
     protected:
@@ -180,6 +183,8 @@ namespace blink {
 
         double m_timeOrigin;
         TerminationObserver* m_terminationObserver;
+
+        OwnPtr<ConsoleMessageStorage> m_messageStorage;
     };
 
 DEFINE_TYPE_CASTS(WorkerGlobalScope, ExecutionContext, context, context->isWorkerGlobalScope(), context.isWorkerGlobalScope());