5 files changed, 7 insertions, 14 deletions
diff --git a/chrome/browser/extensions/extension_sidebar_api.cc b/chrome/browser/extensions/extension_sidebar_api.cc
index 9453ac7..e5f693e 100644
--- a/chrome/browser/extensions/extension_sidebar_api.cc
+++ b/chrome/browser/extensions/extension_sidebar_api.cc
@@ -76,8 +76,9 @@ static bool CanUseHost(Extension* extension,
 
 // static
 void ExtensionSidebarEventRouter::OnStateChanged(
-    Profile* profile, int tab_id, const std::string& content_id,
+    Profile* profile, TabContents* tab, const std::string& content_id,
     const std::string& state) {
+  int tab_id = ExtensionTabUtil::GetTabId(tab);
   DictionaryValue* details = new DictionaryValue;
   details->Set(kTabIdKey, Value::CreateIntegerValue(tab_id));
   details->Set(kStateKey, Value::CreateStringValue(state));
diff --git a/chrome/browser/extensions/extension_sidebar_api.h b/chrome/browser/extensions/extension_sidebar_api.h
index e4ab780..7ad2a33 100644
--- a/chrome/browser/extensions/extension_sidebar_api.h
+++ b/chrome/browser/extensions/extension_sidebar_api.h
@@ -24,7 +24,7 @@ class ExtensionSidebarEventRouter {
  public:
   // Sidebar state changed.
   static void OnStateChanged(
-      Profile* profile, int tab_id, const std::string& content_id,
+      Profile* profile, TabContents* tab, const std::string& content_id,
       const std::string& state);
 
  private:
diff --git a/chrome/browser/sidebar/sidebar_container.cc b/chrome/browser/sidebar/sidebar_container.cc
index 4c73110..73cac8d 100644
--- a/chrome/browser/sidebar/sidebar_container.cc
+++ b/chrome/browser/sidebar/sidebar_container.cc
@@ -36,10 +36,6 @@ void SidebarContainer::SidebarClosing() {
   delegate_->UpdateSidebar(this);
 }
 
-int SidebarContainer::GetTabId() const {
-  return tab_->controller().session_id().id();
-}
-
 void SidebarContainer::Show() {
   delegate_->UpdateSidebar(this);
 }
diff --git a/chrome/browser/sidebar/sidebar_container.h b/chrome/browser/sidebar/sidebar_container.h
index 9d9eb82..ac74ece 100644
--- a/chrome/browser/sidebar/sidebar_container.h
+++ b/chrome/browser/sidebar/sidebar_container.h
@@ -45,9 +45,6 @@ class SidebarContainer
   // Does all the necessary cleanup.
   void SidebarClosing();
 
-  // Returns id of the tab this sidebar is linked to.
-  int GetTabId() const;
-
   // Returns sidebar's content id.
   const std::string& content_id() const { return content_id_; }
 
diff --git a/chrome/browser/sidebar/sidebar_manager.cc b/chrome/browser/sidebar/sidebar_manager.cc
index 3362b71..62c46c14 100644
--- a/chrome/browser/sidebar/sidebar_manager.cc
+++ b/chrome/browser/sidebar/sidebar_manager.cc
@@ -83,14 +83,14 @@ void SidebarManager::NotifyStateChanges(
   if (was_active_host != NULL) {
     ExtensionSidebarEventRouter::OnStateChanged(
         was_active_sidebar_contents->profile(),
-        was_active_host->GetTabId(), was_active_host->content_id(),
+        was_active_host->tab_contents(), was_active_host->content_id(),
         extension_sidebar_constants::kShownState);
   }
 
   if (active_host != NULL) {
     ExtensionSidebarEventRouter::OnStateChanged(
         active_sidebar_contents->profile(),
-        active_host->GetTabId(), active_host->content_id(),
+        active_host->tab_contents(), active_host->content_id(),
         extension_sidebar_constants::kActiveState);
   }
 }
@@ -107,7 +107,7 @@ void SidebarManager::ShowSidebar(TabContents* tab,
   host->Show();
 
   ExtensionSidebarEventRouter::OnStateChanged(
-      tab->profile(), host->GetTabId(), content_id,
+      tab->profile(), tab, content_id,
       extension_sidebar_constants::kShownState);
 }
 
@@ -160,12 +160,11 @@ void SidebarManager::HideSidebar(TabContents* tab,
 
   SidebarContainer* host = GetSidebarContainerFor(tab, content_id);
   DCHECK(host);
-  int tab_id = host->GetTabId();
 
   UnregisterSidebarContainerFor(tab, content_id);
 
   ExtensionSidebarEventRouter::OnStateChanged(
-      tab->profile(), tab_id, content_id,
+      tab->profile(), tab, content_id,
       extension_sidebar_constants::kHiddenState);
 }