Mac: restore subpixel AA in the find bar when it doesn't have focus

chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.mm

 // Copyright (c) 2012 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/location_bar/autocomplete_text_field_cell.h"
 
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/mac_logging.h"
 #include "chrome/browser/search/search.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.h"
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h"
 #import "extensions/common/feature_switch.h"
 #include "grit/theme_resources.h"
 #import "third_party/mozilla/NSPasteboard+Utils.h"
 #import "ui/base/cocoa/appkit_utils.h"
 #import "ui/base/cocoa/nsview_additions.h"
-#include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
+#include "ui/base/cocoa/scoped_cg_context_smooth_fonts.h"
 
 using extensions::FeatureSwitch;
 
 namespace {
 
 // Matches the clipping radius of |GradientButtonCell|.
 const CGFloat kCornerRadius = 3.0;
 
 // How far to inset the left- and right-hand decorations from the field's
 // bounds.
@@ skipping 310 matching lines @@
           decorationFrames[i], -(kDecorationHorizontalPad + 1) / 2, 2);
       decorations[i]->DrawWithBackgroundInFrame(
           background_frame, decorationFrames[i], controlView);
     }
   }
 
   // NOTE: This function must closely match the logic in
   // |-textFrameForFrame:|.
 
   // Superclass draws text portion WRT original |cellFrame|.
-  // Even though -isOpaque is NO due to rounded corners, we know that the text
-  // will be drawn on top of an opaque area, therefore it is safe to enable
-  // font smoothing.
-  {
-    gfx::ScopedNSGraphicsContextSaveGState scopedGState;
-    NSGraphicsContext* context = [NSGraphicsContext currentContext];
-    CGContextRef cgContext = static_cast<CGContextRef>([context graphicsPort]);
-    CGContextSetShouldSmoothFonts(cgContext, true);
-    [super drawInteriorWithFrame:cellFrame inView:controlView];
-  }
+  ui::ScopedCGContextSmoothFonts fontSmoothing;
+  [super drawInteriorWithFrame:cellFrame inView:controlView];
 }
 
 - (LocationBarDecoration*)decorationForEvent:(NSEvent*)theEvent
                                       inRect:(NSRect)cellFrame
                                       ofView:(AutocompleteTextField*)controlView
 {
   const BOOL flipped = [controlView isFlipped];
   const NSPoint location =
       [controlView convertPoint:[theEvent locationInWindow] fromView:nil];
 
@@ skipping 307 matching lines @@
 
 - (void)handleFocusEvent:(NSEvent*)event
                   ofView:(AutocompleteTextField*)controlView {
   if ([controlView observer]) {
     const bool controlDown = ([event modifierFlags] & NSControlKeyMask) != 0;
     [controlView observer]->OnSetFocus(controlDown);
   }
 }
 
 @end