Remove gfx::Canvas::DrawStringRectWithHalo.

ui/gfx/canvas.h

 // 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.
 
 #ifndef UI_GFX_CANVAS_H_
 #define UI_GFX_CANVAS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 57 matching lines @@
     NO_ELLIPSIS = 1 << 7,
 
     // Specifies if words can be split by new lines.
     // This only works with MULTI_LINE.
     CHARACTER_BREAK = 1 << 8,
 
     // Instructs DrawStringRect() to not use subpixel rendering.  This is useful
     // when rendering text onto a fully- or partially-transparent background
     // that will later be blended with another image.
     NO_SUBPIXEL_RENDERING = 1 << 9,
-
-    // Draw text with 1px border.
-    HALO_EFFECT = 1 << 10,
   };
 
   // Creates an empty canvas with image_scale of 1x.
   Canvas();
 
   // Creates canvas with provided DIP |size| and |image_scale|.
   // If this canvas is not opaque, it's explicitly cleared to transparent before
   // being returned.
   Canvas(const Size& size, float image_scale, bool is_opaque);
 
@@ skipping 52 matching lines @@
 
   // Returns the default text alignment to be used when drawing text on a
   // Canvas based on the directionality of the system locale language.
   // This function is used by Canvas::DrawStringRect when the text alignment
   // is not specified.
   //
   // This function returns either Canvas::TEXT_ALIGN_LEFT or
   // Canvas::TEXT_ALIGN_RIGHT.
   static int DefaultCanvasTextAlignment();
 
-  // Draws text with a 1-pixel halo around it of the given color.
-  // On Windows, it allows ClearType to be drawn to an otherwise transparent
-  //   bitmap for drag images. Drag images have only 1-bit of transparency, so
-  //   we don't do any fancy blurring.
-  // On Linux, text with halo is created by stroking it with 2px |halo_color|
-  //   then filling it with |text_color|.
-  // On Mac, NOTIMPLEMENTED.
-  //   TODO(dhollowa): Skia-native implementation is underway.  Cut over to
-  //   that when ready.  http::/crbug.com/109946
-  void DrawStringRectWithHalo(const base::string16& text,
-                              const FontList& font_list,
-                              SkColor text_color,
-                              SkColor halo_color,
-                              const Rect& display_rect,
-                              int flags);
-
   // Extracts an ImageSkiaRep from the contents of this canvas.
   ImageSkiaRep ExtractImageRep() const;
 
   // Draws a dashed rectangle of the specified color.
   // DEPRECATED in favor of the RectF version below.
   // TODO(funkysidd): Remove this (http://crbug.com/553726)
   void DrawDashedRect(const Rect& rect, SkColor color);
 
   // Draws a dashed rectangle of the specified color.
   void DrawDashedRect(const RectF& rect, SkColor color);
@@ skipping 337 matching lines @@
   base::Optional<SkBitmap> bitmap_;
   base::Optional<cc::SkiaPaintCanvas> owned_canvas_;
   cc::PaintCanvas* canvas_;
 
   DISALLOW_COPY_AND_ASSIGN(Canvas);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_CANVAS_H_