Convert GdkPixbufFromSkBitmap and GdkPixbufToSkBitmap

ui/gfx/gtk_util.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/gtk_util.h"
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 #include <stdlib.h>
 
@@ skipping 69 matching lines @@
 }
 
 void GtkInitFromCommandLine(const CommandLine& command_line) {
   CommonInitFromCommandLine(command_line, gtk_init);
 }
 
 void GdkInitFromCommandLine(const CommandLine& command_line) {
   CommonInitFromCommandLine(command_line, gdk_init);
 }
 
-GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap* bitmap) {
-  if (bitmap->isNull())
+GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) {
+  if (bitmap.isNull())
     return NULL;
 
-  SkAutoLockPixels lock_pixels(*bitmap);
+  SkAutoLockPixels lock_pixels(bitmap);
 
-  int width = bitmap->width();
-  int height = bitmap->height();
-  int stride = bitmap->rowBytes();
+  int width = bitmap.width();
+  int height = bitmap.height();
+  int stride = bitmap.rowBytes();
 
   // SkBitmaps are premultiplied, we need to unpremultiply them.
   const int kBytesPerPixel = 4;
   uint8* divided = static_cast<uint8*>(malloc(height * stride));
 
   for (int y = 0, i = 0; y < height; y++) {
     for (int x = 0; x < width; x++) {
-      uint32 pixel = bitmap->getAddr32(0, y)[x];
+      uint32 pixel = bitmap.getAddr32(0, y)[x];
 
       int alpha = SkColorGetA(pixel);
       if (alpha != 0 && alpha != 255) {
         SkColor unmultiplied = SkUnPreMultiply::PMColorToColor(pixel);
         divided[i + 0] = SkColorGetR(unmultiplied);
         divided[i + 1] = SkColorGetG(unmultiplied);
         divided[i + 2] = SkColorGetB(unmultiplied);
         divided[i + 3] = alpha;
       } else {
         divided[i + 0] = SkColorGetR(pixel);
@@ skipping 56 matching lines @@
       "  GtkDialog::button-spacing = 6\n"
       "  GtkDialog::content-area-spacing = 18\n"
       "  GtkDialog::content-area-border = 0\n"
       "}\n"
       "widget \"about-dialog\" style : application \"about-dialog\"\n";
 
   gtk_rc_parse_string(kRCText);
 }
 
 }  // namespace gfx