Replace NULL with nullptr in all C++ files.

webrtc/modules/desktop_capture/win/cursor.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 96 matching lines @@
   return false;
 }
 
 }  // namespace
 
 MouseCursor* CreateMouseCursorFromHCursor(HDC dc, HCURSOR cursor) {
   ICONINFO iinfo;
   if (!GetIconInfo(cursor, &iinfo)) {
     LOG_F(LS_ERROR) << "Unable to get cursor icon info. Error = "
                     << GetLastError();
-    return NULL;
+    return nullptr;
   }
 
   int hotspot_x = iinfo.xHotspot;
   int hotspot_y = iinfo.yHotspot;
 
   // Make sure the bitmaps will be freed.
   win::ScopedBitmap scoped_mask(iinfo.hbmMask);
   win::ScopedBitmap scoped_color(iinfo.hbmColor);
-  bool is_color = iinfo.hbmColor != NULL;
+  bool is_color = iinfo.hbmColor != nullptr;
 
   // Get |scoped_mask| dimensions.
   BITMAP bitmap_info;
   if (!GetObject(scoped_mask, sizeof(bitmap_info), &bitmap_info)) {
     LOG_F(LS_ERROR) << "Unable to get bitmap info. Error = "
                     << GetLastError();
-    return NULL;
+    return nullptr;
   }
 
   int width = bitmap_info.bmWidth;
   int height = bitmap_info.bmHeight;
   std::unique_ptr<uint32_t[]> mask_data(new uint32_t[width * height]);
 
   // Get pixel data from |scoped_mask| converting it to 32bpp along the way.
   // GetDIBits() sets the alpha component of every pixel to 0.
   BITMAPV5HEADER bmi = {0};
   bmi.bV5Size = sizeof(bmi);
   bmi.bV5Width = width;
   bmi.bV5Height = -height;  // request a top-down bitmap.
   bmi.bV5Planes = 1;
   bmi.bV5BitCount = kBytesPerPixel * 8;
   bmi.bV5Compression = BI_RGB;
   bmi.bV5AlphaMask = 0xff000000;
   bmi.bV5CSType = LCS_WINDOWS_COLOR_SPACE;
   bmi.bV5Intent = LCS_GM_BUSINESS;
   if (!GetDIBits(dc,
                  scoped_mask,
                  0,
                  height,
                  mask_data.get(),
                  reinterpret_cast<BITMAPINFO*>(&bmi),
                  DIB_RGB_COLORS)) {
     LOG_F(LS_ERROR) << "Unable to get bitmap bits. Error = "
                     << GetLastError();
-    return NULL;
+    return nullptr;
   }
 
   uint32_t* mask_plane = mask_data.get();
   std::unique_ptr<DesktopFrame> image(
       new BasicDesktopFrame(DesktopSize(width, height)));
   bool has_alpha = false;
 
   if (is_color) {
     image.reset(new BasicDesktopFrame(DesktopSize(width, height)));
     // Get the pixels from the color bitmap.
     if (!GetDIBits(dc,
                    scoped_color,
                    0,
                    height,
                    image->data(),
                    reinterpret_cast<BITMAPINFO*>(&bmi),
                    DIB_RGB_COLORS)) {
       LOG_F(LS_ERROR) << "Unable to get bitmap bits. Error = "
                       << GetLastError();
-      return NULL;
+      return nullptr;
     }
 
     // GetDIBits() does not provide any indication whether the bitmap has alpha
     // channel, so we use HasAlphaChannel() below to find it out.
     has_alpha = HasAlphaChannel(reinterpret_cast<uint32_t*>(image->data()),
                                 width, width, height);
   } else {
     // For non-color cursors, the mask contains both an AND and an XOR mask and
     // the height includes both. Thus, the width is correct, but we need to
     // divide by 2 to get the correct mask height.
@@ skipping 47 matching lines @@
 
   // Pre-multiply the resulting pixels since MouseCursor uses premultiplied
   // images.
   AlphaMul(reinterpret_cast<uint32_t*>(image->data()), width, height);
 
   return new MouseCursor(
       image.release(), DesktopVector(hotspot_x, hotspot_y));
 }
 
 }  // namespace webrtc