Omnibox UI: Create right-margin on Cocoa dropdown

chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h

Index: chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h
diff --git a/chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h b/chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h
index eeffb43f40e2b29f2ca98face331a3ff6cd20704..9b8bbd45dc6064a22d027afb65dd1f83e12d1e69 100644
--- a/chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h
+++ b/chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h
@@ -72,6 +72,9 @@ class OmniboxPopupMatrixObserver {
   // Left margin padding for the content (i.e. icon and text) in a cell.
   CGFloat contentLeftPadding_;
 
+  // Max width for the content in the cell.
+  CGFloat contentMaxWidth_;
+
   // true if the OmniboxPopupMatrix should use the dark theme style.
   BOOL hasDarkTheme_;
 }
@@ -80,6 +83,7 @@ class OmniboxPopupMatrixObserver {
 @property(nonatomic) CGFloat maxMatchContentsWidth;
 @property(nonatomic) CGFloat answerLineHeight;
 @property(nonatomic) CGFloat contentLeftPadding;
+@property(nonatomic) CGFloat contentMaxWidth;
 @property(readonly, nonatomic) BOOL hasDarkTheme;
 
 // Create a zero-size matrix.