Cleanup gfx::Canvas now that 10562027 has landed

ui/gfx/canvas_skia.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 "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/base/range/range.h"
@@ skipping 359 matching lines @@
                                 SkColor halo_color_in,
                                 int x, int y, int w, int h,
                                 int flags) {
   // Some callers will have semitransparent halo colors, which we don't handle
   // (since the resulting image can have 1-bit transparency only).
   SkColor halo_color = SkColorSetA(halo_color_in, 0xFF);
 
   // Create a temporary buffer filled with the halo color. It must leave room
   // for the 1-pixel border around the text.
   Size size(w + 2, h + 2);
-  Canvas text_canvas(size, true);
+  Canvas text_canvas(size, scale_factor(), true);
   SkPaint bkgnd_paint;
   bkgnd_paint.setColor(halo_color);
   text_canvas.DrawRect(gfx::Rect(size), bkgnd_paint);
 
   // Draw the text into the temporary buffer. This will have correct
   // ClearType since the background color is the same as the halo color.
   text_canvas.DrawStringInt(text, font, text_color, 1, 1, w, h, flags);
 
   uint32_t halo_premul = SkPreMultiplyColor(halo_color);
   SkBitmap& text_bitmap = const_cast<SkBitmap&>(
       skia::GetTopDevice(*text_canvas.sk_canvas())->accessBitmap(true));
 
-  for (int cur_y = 0; cur_y < h + 2; cur_y++) {
+  for (int cur_y = 0; cur_y < text_bitmap.height(); cur_y++) {
     uint32_t* text_row = text_bitmap.getAddr32(0, cur_y);
-    for (int cur_x = 0; cur_x < w + 2; cur_x++) {
+    for (int cur_x = 0; cur_x < text_bitmap.width(); cur_x++) {
       if (text_row[cur_x] == halo_premul) {
         // This pixel was not touched by the text routines. See if it borders
         // a touched pixel in any of the 4 directions (not diagonally).
         if (!PixelShouldGetHalo(text_bitmap, cur_x, cur_y, halo_premul))
           text_row[cur_x] = 0;  // Make transparent.
       } else {
         text_row[cur_x] |= 0xff << SK_A32_SHIFT;  // Make opaque.
       }
     }
   }
 
   // Draw the halo bitmap with blur.
-  DrawImageInt(text_bitmap, x - 1, y - 1);
+  DrawImageInt(gfx::ImageSkiaRep(text_bitmap, text_canvas.scale_factor()),
+      x - 1, y - 1);
 }
 
 void Canvas::DrawFadeTruncatingString(
       const string16& text,
       TruncateFadeMode truncate_mode,
       size_t desired_characters_to_truncate_from_head,
       const gfx::Font& font,
       SkColor color,
       const gfx::Rect& display_rect) {
   int flags = NO_ELLIPSIS;
@@ skipping 54 matching lines @@
   rect.set_height(line_height);
   render_text->SetDisplayRect(rect);
 
   canvas_->save(SkCanvas::kClip_SaveFlag);
   ClipRect(display_rect);
   render_text->Draw(this);
   canvas_->restore();
 }
 
 }  // namespace gfx