Gets component build to work with aura. As part of this I needed to

ui/gfx/screen.h

Index: ui/gfx/screen.h
diff --git a/ui/gfx/screen.h b/ui/gfx/screen.h
index efecc879ec75b28f03d5d63b11fc7cba166cb6d1..458ed447888ba323de54d62430551b82aafe0c8c 100644
--- a/ui/gfx/screen.h
+++ b/ui/gfx/screen.h
@@ -17,6 +17,15 @@ namespace gfx {
 // TODO(erikkay) add more of those methods here
 class UI_EXPORT Screen {
  public:
+  virtual ~Screen() {}
+
+#if defined(USE_AURA)
+  // Sets the instance to use. This takes owernship of |screen|, deleting the
+  // old instant. This is used on aura to avoid circular dependencies between ui

[Ben Goodger (Google), 2011/10/08 00:57:32]

instance

+  // and aura.
+  static void SetInstance(Screen* screen);
+#endif
+
   static gfx::Point GetCursorScreenPoint();
 
   // Returns the work area of the monitor nearest the specified window.
@@ -34,6 +43,22 @@ class UI_EXPORT Screen {
 
   // Returns the window under the cursor.
   static gfx::NativeWindow GetWindowAtCursorScreenPoint();
+
+ protected:
+  virtual gfx::Rect GetMonitorWorkAreaNearestWindowImpl(
+      gfx::NativeView view) = 0;
+  virtual gfx::Rect GetMonitorAreaNearestWindowImpl(
+      gfx::NativeView view) = 0;
+  virtual gfx::Rect GetMonitorWorkAreaNearestPointImpl(
+      const gfx::Point& point) = 0;
+  virtual gfx::Rect GetMonitorAreaNearestPointImpl(const gfx::Point& point) = 0;
+  virtual gfx::NativeWindow GetWindowAtCursorScreenPointImpl() = 0;
+
+private:
+#if defined(USE_AURA)
+  // The singleton screen instance. Only used on aura.
+  static Screen* instance_;
+#endif
 };
 
 }  // namespace gfx