Prevents windows in chromeos from resizing bigger than their maximum size.

ash/wm/window_util.h

Index: ash/wm/window_util.h
diff --git a/ash/wm/window_util.h b/ash/wm/window_util.h
index 83241e4ff1c8013cf79c5a872fbabf8b23635b36..f1da5b8d79366039a0ca17eaab6b3aab197b129b 100644
--- a/ash/wm/window_util.h
+++ b/ash/wm/window_util.h
@@ -51,6 +51,9 @@ ASH_EXPORT bool CanMaximizeWindow(const aura::Window* window);
 // Returns true if |window| can be resized.
 ASH_EXPORT bool CanResizeWindow(const aura::Window* window);
 
+// Returns true if |window| can be snapped to the left or right.
+ASH_EXPORT bool CanSnapWindow(aura::Window* window);
+
 // Returns true if |window| is normal or default.
 ASH_EXPORT bool IsWindowNormal(const aura::Window* window);