Fix password generation icon sizing.

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

 // Copyright 2014 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/autofill/password_generation_popup_view_cocoa.h"
 
 #include <cmath>
 
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 188 matching lines @@
                             autofill::kPopupBorderThickness,
                             contentWidth,
                             controller_->kPopupPasswordSectionHeight)];
 
     // The key icon falls to the left of the title and password.
     const NSSize imageSize = [[keyIcon_ image] size];
     const CGFloat keyX = controller_->kHorizontalPadding;
     const CGFloat keyY =
         std::ceil((controller_->kPopupPasswordSectionHeight / 2.0) -
                   (imageSize.height / 2.0));
-    [keyIcon_ setFrameOrigin:NSMakePoint(keyX, keyY)];
-    [keyIcon_ sizeToFit];
+    [keyIcon_ setFrame:{ NSMakePoint(keyX, keyY), imageSize }];
 
     // The title and password fall to the right of the key icon and are centered
     // vertically as a group with some padding in between.
     [passwordTitleField_ sizeToFit];
     [passwordField_ sizeToFit];
     const CGFloat groupHeight = NSHeight([passwordField_ frame]) +
                                 kPasswordSectionVerticalSeparation +
                                 NSHeight([passwordTitleField_ frame]);
     const CGFloat groupX =
         NSMaxX([keyIcon_ frame]) + controller_->kHorizontalPadding;
@@ skipping 109 matching lines @@
 
 - (NSFont*)boldFont {
   return [NSFont boldSystemFontOfSize:[NSFont smallSystemFontSize]];
 }
 
 - (NSFont*)textFont {
   return [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
 }
 
 @end