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..f0652b16b330ad0585b46658edc5ee11cc4f3453 100644
--- a/chrome/browser/ui/toolbar/component_toolbar_actions_factory.h
+++ b/chrome/browser/ui/toolbar/component_toolbar_actions_factory.h
@@ -17,11 +17,18 @@ class ToolbarActionViewController;
 // components of chrome, such as ChromeCast.
 class ComponentToolbarActionsFactory {
  public:
+  // Component Action IDs.
+  static const char kMediaRouterActionId[];
+  static const char kMockActionId[]; // Only used for testing.
+
   ComponentToolbarActionsFactory();
   ~ComponentToolbarActionsFactory();
 
   static ComponentToolbarActionsFactory* GetInstance();
 
+  // Returns a list of ids of the Chrome Actions.
+  static std::vector<std::string> GetComponentIds();
+
   // Returns a collection of controllers for Chrome Actions. Declared virtual
   // for testing.
   virtual ScopedVector<ToolbarActionViewController>