Remove gfx::Canvas::DrawStringRectWithHalo.

ui/gfx/canvas_notimplemented.cc

 // 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.
 
 #include "ui/gfx/canvas.h"
 
 #include "base/logging.h"
 
 namespace gfx {
 
 // static
 void Canvas::SizeStringFloat(const base::string16& text,
                              const FontList& font_list,
                              float* width,
                              float* height,
                              int line_height,
                              int flags) {
   NOTIMPLEMENTED();
 }
 
-void Canvas::DrawStringRectWithHalo(const base::string16& text,
-                                    const FontList& font_list,
-                                    SkColor text_color,
-                                    SkColor halo_color_in,
-                                    const Rect& display_rect,
-                                    int flags) {
-  NOTIMPLEMENTED();
-}
-
 void Canvas::DrawStringRectWithFlags(const base::string16& text,
                                      const FontList& font_list,
                                      SkColor color,
                                      const Rect& text_bounds,
                                      int flags) {
   NOTIMPLEMENTED();
 }
 
 void Canvas::DrawFadedString(const base::string16& text,
                              const FontList& font_list,
                              SkColor color,
                              const Rect& display_rect,
                              int flags) {
    NOTIMPLEMENTED();
 }
 
 }  // namespace gfx