Mac: Make ScopedTypeRef require explicit constructors

chrome/browser/ui/cocoa/autofill/card_unmask_prompt_view_bridge.mm

 // Copyright (c) 2015 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.
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_models.h"
 #include "chrome/browser/ui/chrome_style.h"
 #import "chrome/browser/ui/cocoa/autofill/autofill_pop_up_button.h"
@@ skipping 455 matching lines @@
   [expirationView_ setFrame:expirationFrame];
   [CardUnmaskPromptViewCocoa verticallyCenterSubviewsInView:expirationView_];
 }
 
 - (void)createStorageViewWithController:
         (autofill::CardUnmaskPromptController*)controller {
   DCHECK(!storageView_);
   storageView_.reset([[NSView alloc] initWithFrame:NSZeroRect]);
   [storageView_ setAutoresizingMask:NSViewWidthSizable];
 
-  base::scoped_nsobject<NSBox> box = [CardUnmaskPromptViewCocoa createPlainBox];
+  base::scoped_nsobject<NSBox> box([CardUnmaskPromptViewCocoa createPlainBox]);
   [box setAutoresizingMask:NSViewWidthSizable];
   [box setFillColor:skia::SkColorToCalibratedNSColor(kShadingColor)];
   [box setContentViewMargins:NSMakeSize(chrome_style::kHorizontalPadding,
                                         chrome_style::kClientBottomPadding)];
   [storageView_ addSubview:box];
 
   // Add "Store card on this device" checkbox.
   storageCheckbox_.reset([[NSButton alloc] initWithFrame:NSZeroRect]);
   [storageCheckbox_ setButtonType:NSSwitchButton];
   [storageCheckbox_
@@ skipping 12 matching lines @@
                                 .GetNativeImageNamed(IDR_AUTOFILL_TOOLTIP_ICON)
                                 .ToNSImage()];
   [storageTooltip_
       setMessage:base::SysUTF16ToNSString(l10n_util::GetStringUTF16(
                      IDS_AUTOFILL_CARD_UNMASK_PROMPT_STORAGE_TOOLTIP))];
   [box addSubview:[storageTooltip_ view]];
   [[storageTooltip_ view] setFrameOrigin:
       NSMakePoint(NSMaxX([storageCheckbox_ frame]) + kButtonGap, 0)];
 
   // Add horizontal separator.
-  base::scoped_nsobject<NSBox> separator =
-      [CardUnmaskPromptViewCocoa createPlainBox];
+  base::scoped_nsobject<NSBox> separator(
+      [CardUnmaskPromptViewCocoa createPlainBox]);
   [separator setAutoresizingMask:NSViewWidthSizable];
   [separator setFillColor:skia::SkColorToCalibratedNSColor(kSubtleBorderColor)];
   [storageView_ addSubview:separator];
 
   [box sizeToFit];
   [separator setFrame:NSMakeRect(0, NSMaxY([box frame]), NSWidth([box frame]),
                                  kSeparatorHeight)];
   [CardUnmaskPromptViewCocoa sizeToFitView:storageView_];
 }
 
@@ skipping 208 matching lines @@
   [verifyButton_ setAction:@selector(onVerify:)];
   [verifyButton_ sizeToFit];
   [self updateVerifyButtonEnabled];
   [mainView addSubview:verifyButton_];
 
   [self setView:mainView];
   [self performLayoutAndDisplay:NO];
 }
 
 @end