views: Fix an operator precedence error found by PVS Studio.

views/window/custom_frame_view.cc

Index: views/window/custom_frame_view.cc
diff --git a/views/window/custom_frame_view.cc b/views/window/custom_frame_view.cc
index c526bf8c15b9879427e33708a24770412ddfef11..85d6ac999ec3c0ae3edc71c161e45e6d724cd375 100644
--- a/views/window/custom_frame_view.cc
+++ b/views/window/custom_frame_view.cc
@@ -397,7 +397,7 @@ void CustomFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
   // graphic, with the actual client edge clipped off the bottom.
   SkBitmap* titlebar_bottom = rb.GetBitmapNamed(IDR_APP_TOP_CENTER);
   int edge_height = titlebar_bottom->height() -
-                    ShouldShowClientEdge() ? kClientEdgeThickness : 0;
+                    (ShouldShowClientEdge() ? kClientEdgeThickness : 0);
   canvas->TileImageInt(*titlebar_bottom, 0,
       frame_->client_view()->y() - edge_height, width(), edge_height);
 }