mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/gradient_button_cell.h

Index: chrome/browser/ui/cocoa/gradient_button_cell.h
diff --git a/chrome/browser/ui/cocoa/gradient_button_cell.h b/chrome/browser/ui/cocoa/gradient_button_cell.h
index 515bc3a94d9867b21d5cbec3bf8f6377f747d3b9..7b03a28021cfc3417f6fcbd83fe93d31b7d3dde4 100644
--- a/chrome/browser/ui/cocoa/gradient_button_cell.h
+++ b/chrome/browser/ui/cocoa/gradient_button_cell.h
@@ -7,7 +7,7 @@
 
 #import <Cocoa/Cocoa.h>
 
-#include "base/memory/scoped_nsobject.h"
+#include "base/mac/scoped_nsobject.h"
 
 namespace ui {
 class ThemeProvider;
@@ -55,15 +55,15 @@ typedef enum {
   // Custom drawing means we need to perform our own mouse tracking if
   // the cell is setShowsBorderOnlyWhileMouseInside:YES.
   BOOL isMouseInside_;
-  scoped_nsobject<NSTrackingArea> trackingArea_;
+  base::scoped_nsobject<NSTrackingArea> trackingArea_;
   BOOL shouldTheme_;
   CGFloat hoverAlpha_;  // 0-1. Controls the alpha during mouse hover
   NSTimeInterval lastHoverUpdate_;
-  scoped_nsobject<NSGradient> gradient_;
+  base::scoped_nsobject<NSGradient> gradient_;
   gradient_button_cell::PulseState pulseState_;
   CGFloat pulseMultiplier_;  // for selecting pulse direction when continuous.
   CGFloat outerStrokeAlphaMult_;  // For pulsing.
-  scoped_nsobject<NSImage> overlayImage_;
+  base::scoped_nsobject<NSImage> overlayImage_;
 }
 
 // Turn off theming.  Temporary work-around.