Fixes two bugs related to constrained windows:

chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc

Index: chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
diff --git a/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc b/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
index e2bcb3c857bbdbd567bd53d3eddae35b134463ae..302550fb48eb4bc754359ad6c610f784d18d5fac 100644
--- a/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
+++ b/chrome/browser/ui/views/constrained_web_dialog_delegate_views.cc
@@ -143,6 +143,10 @@ class ConstrainedWebDialogDelegateViewViews
       GetWebDialogDelegate()->GetDialogSize(&size);
     return size;
   }
+  virtual gfx::Size GetMinimumSize() OVERRIDE {
+    // Return an empty size so that we can be made smaller.
+    return gfx::Size();
+  }
 
  private:
   scoped_ptr<ConstrainedWebDialogDelegateViews> impl_;