Save extension activity log to a file.

chrome/browser/extensions/tab_helper.cc

 // 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.
 
 #include "chrome/browser/extensions/tab_helper.h"
 
 #include "chrome/browser/extensions/activity_log.h"
 #include "chrome/browser/extensions/app_notify_channel_ui.h"
 #include "chrome/browser/extensions/crx_installer.h"
 #include "chrome/browser/extensions/extension_action.h"
@@ skipping 85 matching lines @@
   } else {
     location_bar_controller_.reset(
         new PageActionController(web_contents));
   }
 
   if (FeatureSwitch::script_bubble()->IsEnabled()) {
     script_bubble_controller_.reset(
         new ScriptBubbleController(web_contents, this));
   }
 
+
   // If more classes need to listen to global content script activity, then
   // a separate routing class with an observer interface should be written.
-  AddScriptExecutionObserver(ActivityLog::GetInstance());
+  profile_ = Profile::FromBrowserContext(web_contents->GetBrowserContext());
+  AddScriptExecutionObserver(ActivityLog::GetInstance(profile_));
 
   registrar_.Add(this,
                  content::NOTIFICATION_LOAD_STOP,
                  content::Source<NavigationController>(
                      &web_contents->GetController()));
 
   registrar_.Add(this,
                  chrome::NOTIFICATION_EXTENSION_UNLOADED,
                  content::NotificationService::AllSources());
 }
 
 TabHelper::~TabHelper() {
-  RemoveScriptExecutionObserver(ActivityLog::GetInstance());
+  RemoveScriptExecutionObserver(ActivityLog::GetInstance(profile_));
 }
 
 void TabHelper::CreateApplicationShortcuts() {
   DCHECK(CanCreateApplicationShortcuts());
   NavigationEntry* entry =
       web_contents()->GetController().GetLastCommittedEntry();
   if (!entry)
     return;
 
   pending_web_app_action_ = CREATE_SHORTCUT;
@@ skipping 380 matching lines @@
         script_bubble_controller_->OnExtensionUnloaded(
             content::Details<extensions::UnloadedExtensionInfo>(
                 details)->extension->id());
         break;
       }
     }
   }
 }
 
 }  // namespace extensions