Move c/c/e/extension_set to top-level extensions/

chrome/browser/extensions/extension_special_storage_policy.h

Index: chrome/browser/extensions/extension_special_storage_policy.h
diff --git a/chrome/browser/extensions/extension_special_storage_policy.h b/chrome/browser/extensions/extension_special_storage_policy.h
index 494c65ab7faf5af8d6788481f89321e29e15e42e..aa04bd6752c902217357ed04c72a4b87e7749691 100644
--- a/chrome/browser/extensions/extension_special_storage_policy.h
+++ b/chrome/browser/extensions/extension_special_storage_policy.h
@@ -9,7 +9,7 @@
 #include <string>
 
 #include "base/synchronization/lock.h"
-#include "chrome/common/extensions/extension_set.h"
+#include "extensions/common/extension_set.h"
 #include "url/gurl.h"
 #include "webkit/browser/quota/special_storage_policy.h"
 
@@ -46,7 +46,8 @@ class ExtensionSpecialStoragePolicy : public quota::SpecialStoragePolicy {
 
   // Returns the set of extensions protecting this origin. The caller does not
   // take ownership of the return value.
-  const ExtensionSet* ExtensionsProtectingOrigin(const GURL& origin);
+  const extensions::ExtensionSet* ExtensionsProtectingOrigin(
+      const GURL& origin);
 
  protected:
   virtual ~ExtensionSpecialStoragePolicy();
@@ -58,18 +59,18 @@ class ExtensionSpecialStoragePolicy : public quota::SpecialStoragePolicy {
     ~SpecialCollection();
 
     bool Contains(const GURL& origin);
-    const ExtensionSet* ExtensionsContaining(const GURL& origin);
+    const extensions::ExtensionSet* ExtensionsContaining(const GURL& origin);
     bool ContainsExtension(const std::string& extension_id);
     bool Add(const extensions::Extension* extension);
     bool Remove(const extensions::Extension* extension);
     void Clear();
 
    private:
-    typedef std::map<GURL, ExtensionSet*> CachedResults;
+    typedef std::map<GURL, extensions::ExtensionSet*> CachedResults;
 
     void ClearCache();
 
-    ExtensionSet extensions_;
+    extensions::ExtensionSet extensions_;
     CachedResults cached_results_;
   };