Clean up a few more unused globals.

chrome/browser/ui/cocoa/confirm_bubble_cocoa.mm

Index: chrome/browser/ui/cocoa/confirm_bubble_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/confirm_bubble_cocoa.mm b/chrome/browser/ui/cocoa/confirm_bubble_cocoa.mm
index 474bf2132f477fabfa9ca16bfcf319399149754c..d8fd8803fd3e3b01da90dbce7e2de34d1cbdc507 100644
--- a/chrome/browser/ui/cocoa/confirm_bubble_cocoa.mm
+++ b/chrome/browser/ui/cocoa/confirm_bubble_cocoa.mm
@@ -13,8 +13,6 @@
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/point.h"
 
-namespace {
-
 // The width for the message text. We break lines so the specified message fits
 // into this width.
 const int kMaxMessageWidth = 400;
@@ -36,9 +34,6 @@ const int kRelatedControlHorizontalSpacing = 8;
 // Vertical spacing between controls that are logically related.
 const int kRelatedControlVerticalSpacing = 8;
 
-// Horizontal spacing between controls that are logically unrelated.
-const int kUnrelatedControlHorizontalSpacing = 12;
-
 // Vertical spacing between the edge of the window and the
 // top or bottom of a button.
 const int kButtonVEdgeMargin = 6;
@@ -47,8 +42,6 @@ const int kButtonVEdgeMargin = 6;
 // left or right of a button.
 const int kButtonHEdgeMargin = 7;
 
-}  // namespace
-
 namespace chrome {
 
 void ShowConfirmBubble(gfx::NativeView view,