mac: Prepare for -Wunused-functions.

webkit/common/cursors/webcursor_mac.mm

 // 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 "webkit/common/cursors/webcursor.h"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
@@ skipping 120 matching lines @@
                                     int hotspot_y) {
   if (base::mac::IsOSLionOrLater()) {
     NSCursor* cursor = [CrCoreCursor cursorWithType:type];
     if (cursor)
       return cursor;
   }
 
   return LoadCursor(resource_id, hotspot_x, hotspot_y);
 }
 
-// TODO(avi): When Skia becomes default, fold this function into the remaining
-// caller, InitFromCursor().
-CGImageRef CreateCGImageFromCustomData(const std::vector<char>& custom_data,
-                                       const gfx::Size& custom_size) {
-  // If the data is missing, leave the backing transparent.
-  void* data = NULL;
-  if (!custom_data.empty()) {
-    // This is safe since we're not going to draw into the context we're
-    // creating.
-    data = const_cast<char*>(&custom_data[0]);
-  }
-
-  // If the size is empty, use a 1x1 transparent image.
-  gfx::Size size = custom_size;
-  if (size.IsEmpty()) {
-    size.SetSize(1, 1);
-    data = NULL;
-  }
-
-  base::ScopedCFTypeRef<CGColorSpaceRef> cg_color(
-      CGColorSpaceCreateDeviceRGB());
-  // The settings here match SetCustomData() below; keep in sync.
-  base::ScopedCFTypeRef<CGContextRef> context(CGBitmapContextCreate(
-      data,
-      size.width(),
-      size.height(),
-      8,
-      size.width() * 4,
-      cg_color.get(),
-      kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big));
-  return CGBitmapContextCreateImage(context.get());
-}
-
 NSCursor* CreateCustomCursor(const std::vector<char>& custom_data,
                              const gfx::Size& custom_size,
                              float custom_scale,
                              const gfx::Point& hotspot) {
   // If the data is missing, leave the backing transparent.
   void* data = NULL;
   size_t data_size = 0;
   if (!custom_data.empty()) {
     // This is safe since we're not going to draw into the context we're
     // creating.
@@ skipping 235 matching lines @@
   return true;
 }
 
 void WebCursor::CleanupPlatformData() {
   return;
 }
 
 void WebCursor::CopyPlatformData(const WebCursor& other) {
   return;
 }