Snapshot of all changes to get jumbo in blink and content.

content/common/appcache_messages.h

Index: content/common/appcache_messages.h
diff --git a/content/common/appcache_messages.h b/content/common/appcache_messages.h
index 95964f71c9de1054ecbc19e0f38b8de18eb2a380..230b3e47048bf7235dfe2716c2c484ccab51a02f 100644
--- a/content/common/appcache_messages.h
+++ b/content/common/appcache_messages.h
@@ -2,6 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#ifndef CONTENT_COMMON_APPCACHE_MESSAGES_H_
+#define CONTENT_COMMON_APPCACHE_MESSAGES_H_
+
 // Multiply-included message file, hence no include guard.
 
 #include "ipc/ipc_message_macros.h"
@@ -160,3 +163,5 @@ IPC_MESSAGE_CONTROL3(AppCacheMsg_LogMessage,
 IPC_MESSAGE_CONTROL2(AppCacheMsg_ContentBlocked,
                      int /* host_id */,
                      GURL /* manifest_url */)
+
+#endif  // CONTENT_COMMON_APPCACHE_MESSAGES_H_