Final batch adding real histogram values for extension events.

chrome/browser/extensions/event_router_forwarder.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/event_router_forwarder.h"
 
 #include "base/bind.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/event_router.h"
 #include "url/gurl.h"
 
 using content::BrowserThread;
 
 namespace extensions {
 
 EventRouterForwarder::EventRouterForwarder() {
 }
 
 EventRouterForwarder::~EventRouterForwarder() {
 }
 
 void EventRouterForwarder::BroadcastEventToRenderers(
+    events::HistogramValue histogram_value,
     const std::string& event_name,
     scoped_ptr<base::ListValue> event_args,
     const GURL& event_url) {
-  HandleEvent(std::string(), event_name, event_args.Pass(), 0, true, event_url);
+  HandleEvent(std::string(), histogram_value, event_name, event_args.Pass(), 0,
+              true, event_url);
 }
 
 void EventRouterForwarder::DispatchEventToRenderers(
+    events::HistogramValue histogram_value,
     const std::string& event_name,
     scoped_ptr<base::ListValue> event_args,
     void* profile,
     bool use_profile_to_restrict_events,
     const GURL& event_url) {
   if (!profile)
     return;
-  HandleEvent(std::string(),
-              event_name,
-              event_args.Pass(),
-              profile,
-              use_profile_to_restrict_events,
-              event_url);
+  HandleEvent(std::string(), histogram_value, event_name, event_args.Pass(),
+              profile, use_profile_to_restrict_events, event_url);
 }
 
 void EventRouterForwarder::BroadcastEventToExtension(
     const std::string& extension_id,
+    events::HistogramValue histogram_value,
     const std::string& event_name,
     scoped_ptr<base::ListValue> event_args,
     const GURL& event_url) {
-  HandleEvent(extension_id, event_name, event_args.Pass(), 0, true, event_url);
+  HandleEvent(extension_id, histogram_value, event_name, event_args.Pass(), 0,
+              true, event_url);
 }
 
 void EventRouterForwarder::DispatchEventToExtension(
     const std::string& extension_id,
+    events::HistogramValue histogram_value,
     const std::string& event_name,
     scoped_ptr<base::ListValue> event_args,
     void* profile,
     bool use_profile_to_restrict_events,
     const GURL& event_url) {
   if (!profile)
     return;
-  HandleEvent(extension_id, event_name, event_args.Pass(), profile,
-              use_profile_to_restrict_events, event_url);
+  HandleEvent(extension_id, histogram_value, event_name, event_args.Pass(),
+              profile, use_profile_to_restrict_events, event_url);
 }
 
 void EventRouterForwarder::HandleEvent(const std::string& extension_id,
+                                       events::HistogramValue histogram_value,
                                        const std::string& event_name,
                                        scoped_ptr<base::ListValue> event_args,
                                        void* profile_ptr,
                                        bool use_profile_to_restrict_events,
                                        const GURL& event_url) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
-        base::Bind(&EventRouterForwarder::HandleEvent, this,
-                   extension_id, event_name, base::Passed(&event_args),
+        base::Bind(&EventRouterForwarder::HandleEvent, this, extension_id,
+                   histogram_value, event_name, base::Passed(&event_args),
                    profile_ptr, use_profile_to_restrict_events, event_url));
     return;
   }
 
   if (!g_browser_process || !g_browser_process->profile_manager())
     return;
 
   ProfileManager* profile_manager = g_browser_process->profile_manager();
   Profile* profile = NULL;
   if (profile_ptr) {
     profile = reinterpret_cast<Profile*>(profile_ptr);
     if (!profile_manager->IsValidProfile(profile))
       return;
   }
   if (profile) {
-    CallEventRouter(profile, extension_id, event_name, event_args.Pass(),
+    CallEventRouter(profile, extension_id, histogram_value, event_name,
+                    event_args.Pass(),
                     use_profile_to_restrict_events ? profile : NULL, event_url);
   } else {
     std::vector<Profile*> profiles(profile_manager->GetLoadedProfiles());
     for (size_t i = 0; i < profiles.size(); ++i) {
       scoped_ptr<base::ListValue> per_profile_event_args(
           event_args->DeepCopy());
-      CallEventRouter(
-          profiles[i], extension_id, event_name, per_profile_event_args.Pass(),
-          use_profile_to_restrict_events ? profiles[i] : NULL, event_url);
+      CallEventRouter(profiles[i], extension_id, histogram_value, event_name,
+                      per_profile_event_args.Pass(),
+                      use_profile_to_restrict_events ? profiles[i] : NULL,
+                      event_url);
     }
   }
 }
 
 void EventRouterForwarder::CallEventRouter(
     Profile* profile,
     const std::string& extension_id,
+    events::HistogramValue histogram_value,
     const std::string& event_name,
     scoped_ptr<base::ListValue> event_args,
     Profile* restrict_to_profile,
     const GURL& event_url) {
 #if defined(OS_CHROMEOS)
   // Extension does not exist for chromeos login.  This needs to be
   // removed once we have an extension service for login screen.
   // crosbug.com/12856.
   if (!extensions::EventRouter::Get(profile))
     return;
 #endif
 
   scoped_ptr<Event> event(
-      new Event(events::UNKNOWN, event_name, event_args.Pass()));
+      new Event(histogram_value, event_name, event_args.Pass()));
   event->restrict_to_browser_context = restrict_to_profile;
   event->event_url = event_url;
   if (extension_id.empty()) {
     extensions::EventRouter::Get(profile)->BroadcastEvent(event.Pass());
   } else {
     extensions::EventRouter::Get(profile)
         ->DispatchEventToExtension(extension_id, event.Pass());
   }
 }
 
 }  // namespace extensions