Move all remaining appcache-related code to content namespace

content/browser/appcache/mock_appcache_policy.h

Index: content/browser/appcache/mock_appcache_policy.h
diff --git a/content/browser/appcache/mock_appcache_policy.h b/content/browser/appcache/mock_appcache_policy.h
index bc7576412b9c541ac1d23582d17ee4b47ad930b6..93de476f00dff4548f891b34c205c040b53e0482 100644
--- a/content/browser/appcache/mock_appcache_policy.h
+++ b/content/browser/appcache/mock_appcache_policy.h
@@ -6,12 +6,12 @@
 #define CONTENT_BROWSER_APPCACHE_MOCK_APPCACHE_POLICY_H_
 
 #include "base/compiler_specific.h"
+#include "content/browser/appcache/appcache_policy.h"
 #include "url/gurl.h"
-#include "webkit/browser/appcache/appcache_policy.h"
 
 namespace content {
 
-class MockAppCachePolicy : public appcache::AppCachePolicy {
+class MockAppCachePolicy : public AppCachePolicy {
  public:
   MockAppCachePolicy();
   virtual ~MockAppCachePolicy();