Support Component Actions in the toolbar.

chrome/browser/ui/toolbar/component_toolbar_actions_factory.h

Index: chrome/browser/ui/toolbar/component_toolbar_actions_factory.h
diff --git a/chrome/browser/ui/toolbar/component_toolbar_actions_factory.h b/chrome/browser/ui/toolbar/component_toolbar_actions_factory.h
index 9a205eded0af0041ff9cc2c50c00f4958cba0811..2a7cae59014c12f40dc7d21cf401e470be01b4a6 100644
--- a/chrome/browser/ui/toolbar/component_toolbar_actions_factory.h
+++ b/chrome/browser/ui/toolbar/component_toolbar_actions_factory.h
@@ -17,13 +17,20 @@ class ToolbarActionViewController;
 // components of chrome, such as ChromeCast.
 class ComponentToolbarActionsFactory {
  public:
+  // Component Action IDs.
+  static const char kMediaRouterActionId[];
+  static const char kActionIdForTest[];  // Only used for testing.
+
   ComponentToolbarActionsFactory();
   ~ComponentToolbarActionsFactory();
 
   static ComponentToolbarActionsFactory* GetInstance();
 
-  // Returns a collection of controllers for Chrome Actions. Declared virtual
-  // for testing.
+  // Returns a list of ids of the Component Actions.
+  static std::vector<std::string>* GetComponentIds();
+
+  // Returns a collection of controllers for Component Actions. Declared
+  // virtual for testing.
   virtual ScopedVector<ToolbarActionViewController>
       GetComponentToolbarActions(Browser* browser);