Fix DCHECK error when using multi window resizer on the 2nd display that is place on the left side.

ash/wm/workspace/workspace_window_resizer.cc

Index: ash/wm/workspace/workspace_window_resizer.cc
diff --git a/ash/wm/workspace/workspace_window_resizer.cc b/ash/wm/workspace/workspace_window_resizer.cc
index 57c70f68d569a3b29c20b19a00c153b20f1c082f..3e796aa99ac687f07a9e5bcc579d9a1a38926ccb 100644
--- a/ash/wm/workspace/workspace_window_resizer.cc
+++ b/ash/wm/workspace/workspace_window_resizer.cc
@@ -283,8 +283,8 @@ gfx::Rect WorkspaceWindowResizer::GetFinalBounds(
 void WorkspaceWindowResizer::LayoutAttachedWindows(
     const gfx::Rect& bounds,
     int grid_size) {
-  gfx::Rect work_area(
-      gfx::Screen::GetDisplayNearestWindow(window()).work_area());
+  // |bounds| and |work_area| are in |window()->parent()|'s coordinates.

[sky, 2012/08/09 15:57:33]

Remove comment since coordinate system is documented in the header.

[mazda, 2012/08/09 16:08:50]

Done.

+  gfx::Rect work_area(ScreenAsh::GetDisplayWorkAreaBoundsInParent(window()));
   std::vector<int> sizes;
   CalculateAttachedSizes(
       PrimaryAxisSize(details_.initial_bounds.size()),