Use initialized canvas to create network icons.

ui/gfx/canvas.cc

 // 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.
 
 #include "ui/gfx/canvas.h"
 
 #include <cmath>
 #include <limits>
 
 #include "base/i18n/rtl.h"
@@ skipping 24 matching lines @@
   // skia::PlatformCanvas instances are initialized to 0 by Cairo, but
   // uninitialized on other platforms.
   if (!is_opaque)
     canvas_->clear(SkColorSetARGB(0, 0, 0, 0));
 #endif
 
   SkScalar scale_scalar = SkFloatToScalar(image_scale);
   canvas_->scale(scale_scalar, scale_scalar);
 }
 
-Canvas::Canvas(const ImageSkiaRep& image_rep, bool is_opaque)
-    : image_scale_(image_rep.scale()),
-      canvas_(sk_sp<SkCanvas>(
-          skia::CreatePlatformCanvas(image_rep.pixel_width(),
-                                     image_rep.pixel_height(),
-                                     is_opaque))) {
-  SkScalar scale_scalar = SkFloatToScalar(image_scale_);
-  canvas_->scale(scale_scalar, scale_scalar);
-  DrawImageInt(ImageSkia(image_rep), 0, 0);
-}
-
 Canvas::Canvas()
     : image_scale_(1.f),
       canvas_(sk_sp<SkCanvas>(skia::CreatePlatformCanvas(0, 0, false))) {}
 
 Canvas::Canvas(sk_sp<SkCanvas> canvas, float image_scale)
     : image_scale_(image_scale), canvas_(std::move(canvas)) {
   DCHECK(canvas_);
 }
 
 Canvas::~Canvas() {
@@ skipping 493 matching lines @@
   p.setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality);
   p.setShader(CreateImageRepShaderForScale(
       image_rep, SkShader::kRepeat_TileMode, shader_scale,
       remove_image_scale ? image_rep.scale() : 1.f));
 
   // The rect will be filled by the bitmap.
   canvas_->drawRect(dest_rect, p);
 }
 
 }  // namespace gfx