Componentization: make InspectorTaskRunner::IgnoreInterruptsScope visible for WebDevToolsAgentImpl.

Source/core/inspector/InspectorTaskRunner.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef InspectorTaskRunner_h
 #define InspectorTaskRunner_h
 
 #include "core/CoreExport.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
@@ skipping 12 matching lines @@
     class Task {
     public:
         virtual ~Task() { }
         virtual void run() = 0;
     };
     // This method can be called on any thread. It is caller's responsibility to make sure that
     // this V8Debugger and corresponding v8::Isolate exist while this method is running.
     void interruptAndRun(PassOwnPtr<Task>);
     void runPendingTasks();
 
-    class IgnoreInterruptsScope final {
+    class CORE_EXPORT IgnoreInterruptsScope final {
     public:
         explicit IgnoreInterruptsScope(InspectorTaskRunner*);
         ~IgnoreInterruptsScope();
 
     private:
         bool m_wasIgnoring;
         InspectorTaskRunner* m_taskRunner;
     };
 
 private:
     static void v8InterruptCallback(v8::Isolate*, void* data);
 
     v8::Isolate* m_isolate;
     class ThreadSafeTaskQueue;
     OwnPtr<ThreadSafeTaskQueue> m_taskQueue;
     bool m_ignoreInterrupts;
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorTaskRunner_h)