prune down content_dll change to just the CONTENT_EXPORTS

content/browser/in_process_webkit/dom_storage_context.h

Index: content/browser/in_process_webkit/dom_storage_context.h
diff --git a/content/browser/in_process_webkit/dom_storage_context.h b/content/browser/in_process_webkit/dom_storage_context.h
index a23dc83a6bb16fa9e4c83270e02a63dfc90c60df..09b0ef6339ea570f7e49ccc8f04f92e78dc5f282 100644
--- a/content/browser/in_process_webkit/dom_storage_context.h
+++ b/content/browser/in_process_webkit/dom_storage_context.h
@@ -14,6 +14,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
 #include "base/time.h"
+#include "content/common/content_export.h"
 
 class DOMStorageArea;
 class DOMStorageMessageFilter;
@@ -31,7 +32,7 @@ class SpecialStoragePolicy;
 // on the WebKit thread unless noted otherwise.
 //
 // NOTE: Virtual methods facilitate mocking functions for testing.
-class DOMStorageContext {
+class CONTENT_EXPORT DOMStorageContext {
  public:
   DOMStorageContext(WebKitContext* webkit_context,
                     quota::SpecialStoragePolicy* special_storage_policy);