Add test case for updating the bounds of snapped window.

ash/wm/window_util.cc

Index: ash/wm/window_util.cc
diff --git a/ash/wm/window_util.cc b/ash/wm/window_util.cc
index 985039735fbbc2bb4d9ba0c1fa8e6cec95cf7c9b..ef9b0de3d4b2b724757a18457280863d5ea0bf17 100644
--- a/ash/wm/window_util.cc
+++ b/ash/wm/window_util.cc
@@ -77,6 +77,12 @@ void CenterWindow(aura::Window* window) {
   }
 }
 
+// Adjust bounds so that the size does not exceeds |max_size|.

[pkotwicz, 2014/02/13 02:26:16]

Nit: You have a comment in the .h file. It is unnecessary here.

+void AdjustBoundsSmallerThan(const gfx::Size& max_size, gfx::Rect* bounds) {
+  bounds->set_width(std::min(bounds->width(), max_size.width()));
+  bounds->set_height(std::min(bounds->height(), max_size.height()));
+}
+
 void AdjustBoundsToEnsureMinimumWindowVisibility(const gfx::Rect& visible_area,
                                                  gfx::Rect* bounds) {
   AdjustBoundsToEnsureWindowVisibility(
@@ -87,8 +93,7 @@ void AdjustBoundsToEnsureWindowVisibility(const gfx::Rect& visible_area,
                                           int min_width,
                                           int min_height,
                                           gfx::Rect* bounds) {
-  bounds->set_width(std::min(bounds->width(), visible_area.width()));
-  bounds->set_height(std::min(bounds->height(), visible_area.height()));
+  AdjustBoundsSmallerThan(visible_area.size(), bounds);
 
   min_width = std::min(min_width, visible_area.width());
   min_height = std::min(min_height, visible_area.height());