extensions: windows: list all windows from the current profile

chrome/browser/extensions/window_controller.h

Index: chrome/browser/extensions/window_controller.h
diff --git a/chrome/browser/extensions/window_controller.h b/chrome/browser/extensions/window_controller.h
index f21a0fa83086e54d5c13b7a1531b0c2dfdb55b40..73d3907b55a23502dd27eee130695bb0d6ea7a05 100644
--- a/chrome/browser/extensions/window_controller.h
+++ b/chrome/browser/extensions/window_controller.h
@@ -9,6 +9,7 @@
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "chrome/common/extensions/api/windows.h"
 
 class Browser;  // TODO(stevenjb) eliminate this dependency.
 class GURL;
@@ -41,6 +42,21 @@ class WindowController {
     REASON_NOT_EDITABLE,
   };
 
+  // A bitmaks used as filter on window types.
+  using TypeFilter = uint32_t;
+
+  // Returns a filter allowing all window types to be manipulated
+  // through the chrome.windows APIs.
+  static TypeFilter GetAllWindowFilter();
+
+  // Returns the default filter to be used when operating on the windows
+  // from WindowControllerList when using the chrome.windows APIs.
+  static TypeFilter GetDefaultWindowFilter();
+
+  // Builds a filter out of a vector of window types.
+  static TypeFilter GetFilterFromWindowTypes(
+      const std::vector<api::windows::WindowType>& types);
+
   WindowController(ui::BaseWindow* window, Profile* profile);
   virtual ~WindowController();
 
@@ -83,6 +99,9 @@ class WindowController {
   // need to define this behavior.
   virtual bool IsVisibleToExtension(const Extension* extension) const = 0;
 
+  // Returns true if the window type of the controller matches the |filter|.
+  bool MatchesFilter(TypeFilter filter) const;
+
  private:
   ui::BaseWindow* window_;
   Profile* profile_;