Enable Activity Logging by default

chrome/common/render_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 338 matching lines @@
 // Tells the renderer to revert the text of translated page to its original
 // contents.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_RevertTranslation,
                     int /* page id */)
 
 // Sent on process startup to indicate whether this process is running in
 // incognito mode.
 IPC_MESSAGE_CONTROL1(ChromeViewMsg_SetIsIncognitoProcess,
                      bool /* is_incognito_processs */)
 
-// Sent on process startup to indicate whether the extension activity
-// log is enabled.
-IPC_MESSAGE_CONTROL1(ChromeViewMsg_SetExtensionActivityLogEnabled,
-                     bool /* extension_activity_log_enabled */)
-
 // Sent in response to ViewHostMsg_DidBlockDisplayingInsecureContent.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetAllowDisplayingInsecureContent,
                     bool /* allowed */)
 
 // Sent in response to ViewHostMsg_DidBlockRunningInsecureContent.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetAllowRunningInsecureContent,
                     bool /* allowed */)
 
 // Tells renderer to always enforce mixed content blocking for this host.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_AddStrictSecurityHost,
@@ skipping 362 matching lines @@
 
 // Tells InstantExtended to undo one most visited item deletion.
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_SearchBoxUndoMostVisitedDeletion,
                     int /* page_id */,
                     GURL /* url */)
 
 // Tells InstantExtended whether the page supports voice search.
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_SetVoiceSearchSupported,
                     int /* page_id */,
                     bool /* supported */)