MacViews: Use Cocoa folder icons in tree views.

ui/gfx/skbitmap_operations.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/skbitmap_operations.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
 #include <algorithm>
@@ skipping 676 matching lines @@
     for (int x = 0; x < image.width(); ++x) {
       uint32_t* dst = transposed.getAddr32(y, x);
       *dst = image_row[x];
     }
   }
 
   return transposed;
 }
 
 // static
+SkBitmap SkBitmapOperations::CreateMirroredBitmap(const SkBitmap& image) {
+  DCHECK(image.colorType() == kN32_SkColorType);
+
+  SkBitmap mirrored;
+  mirrored.allocN32Pixels(image.width(), image.height());
+
+  SkAutoLockPixels lock_image(image);
+  SkAutoLockPixels lock_mirrored(mirrored);
+
+  for (int y = 0; y < image.height(); ++y) {
+    uint32_t* image_row_src = image.getAddr32(0, y);
+    uint32_t* image_row_dst = mirrored.getAddr32(0, y);
+    for (int src_x = image.width() - 1, dst_x = 0; src_x >= 0; --src_x, ++dst_x)
+      image_row_dst[dst_x] = image_row_src[src_x];
+  }
+
+  return mirrored;
+}
+
+// static
 SkBitmap SkBitmapOperations::CreateColorMask(const SkBitmap& bitmap,
                                              SkColor c) {
   DCHECK(bitmap.colorType() == kN32_SkColorType);
 
   SkBitmap color_mask;
   color_mask.allocN32Pixels(bitmap.width(), bitmap.height());
   color_mask.eraseARGB(0, 0, 0, 0);
 
   SkCanvas canvas(color_mask);
 
@@ skipping 79 matching lines @@
   canvas.translate(SkFloatToScalar(result.width() * 0.5f),
                    SkFloatToScalar(result.height() * 0.5f));
   canvas.rotate(angle);
   canvas.translate(-SkFloatToScalar(source.width() * 0.5f),
                    -SkFloatToScalar(source.height() * 0.5f));
   canvas.drawBitmap(source, 0, 0);
   canvas.flush();
 
   return result;
 }