[Mac] Fix jittery divider during omnibox's popup blocker animation.

chrome/browser/ui/cocoa/location_bar/content_setting_decoration.mm

Index: chrome/browser/ui/cocoa/location_bar/content_setting_decoration.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/content_setting_decoration.mm b/chrome/browser/ui/cocoa/location_bar/content_setting_decoration.mm
index 5c401ab91199c18e622572ea1744d7e4dba08406..de4f957dfbfb65509fab082a6f9b535a6d1631ca 100644
--- a/chrome/browser/ui/cocoa/location_bar/content_setting_decoration.mm
+++ b/chrome/browser/ui/cocoa/location_bar/content_setting_decoration.mm
@@ -370,8 +370,8 @@ CGFloat ContentSettingDecoration::GetWidthForSpace(CGFloat width) {
 void ContentSettingDecoration::DrawInFrame(NSRect frame, NSView* control_view) {
   const BOOL is_rtl = cocoa_l10n_util::ShouldDoExperimentalRTLLayout();
   if ([animation_ animationState] != kNoAnimation) {
-    // Align to integral points so that drawing isn't blurry.
-    frame.origin.x = std::floor(frame.origin.x);
+    // Align to integral points so that drawing isn't blurry or jittery.
+    frame = NSIntegralRect(frame);
 
     NSRect background_rect = NSInsetRect(frame, 0.0, kBorderPadding);
     // This code is almost identical to code that appears in BubbleDecoration.