Mac: Make ScopedTypeRef require explicit constructors

chrome/browser/ui/cocoa/new_tab_button.mm

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/new_tab_button.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/sdk_forward_declarations.h"
 #import "chrome/browser/ui/cocoa/image_button_cell.h"
 #include "chrome/browser/ui/cocoa/tabs/tab_view.h"
@@ skipping 341 matching lines @@
       fillColor =
           theme->GetNSImageColorNamed(IDR_THEME_TAB_BACKGROUND_INACTIVE);
       break;
 
     default:
       fillColor = [NSColor redColor];
       // All states should be accounted for above.
       NOTREACHED();
   }
 
-  base::scoped_nsobject<NewTabButtonCustomImageRep> imageRep =
+  base::scoped_nsobject<NewTabButtonCustomImageRep> imageRep(
       [[NewTabButtonCustomImageRep alloc]
           initWithDrawSelector:@selector(drawNewTabButtonImage:)
-                      delegate:[NewTabButton class]];
+                      delegate:[NewTabButton class]]);
   [imageRep setDestView:self];
   [imageRep setFillColor:fillColor];
   [imageRep setPatternPhasePosition:
       [[self window]
           themeImagePositionForAlignment:THEME_IMAGE_ALIGN_WITH_TAB_STRIP]];
   [imageRep setOverlayOption:overlayOption];
 
   NSImage* newTabButtonImage =
       [[[NSImage alloc] initWithSize:newTabButtonImageSize] autorelease];
   [newTabButtonImage setCacheMode:NSImageCacheAlways];
@@ skipping 154 matching lines @@
   [fillColor set];
   CGContextRef context = static_cast<CGContextRef>(
       [[NSGraphicsContext currentContext] graphicsPort]);
   CGFloat lineWidth = LineWidthFromContext(context);
   [[NewTabButton newTabButtonBezierPathWithLineWidth:lineWidth] fill];
   [image unlockFocus];
   return image;
 }
 
 @end