Convert from using env['PLATFORM'] directly to using the more flexible...

webkit/SConscript.port

 # Copyright (c) 2006-2008 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.
 
 Import('env')
 
 env = env.Clone()
 
-if env['PLATFORM'] == 'win32':
+if env.Bit('windows'):
   env.Prepend(
     CCFLAGS = [
       '/TP',
 
       '/wd4244',
       '/wd4291',
       '/wd4345',
       '/wd4521',
       '/wd4800',
       ],)
-elif env['PLATFORM'] == 'posix':
+elif env.Bit('linux'):
   env.Append(
       # For the image readers and decoders:
       CXXFLAGS = ["-Wno-sign-compare"],
       LIBS = ['png'],
   )
 
 input_files = [
     '$PORT_DIR/bridge/chromium/PluginsChromium.cpp',
 
     '$PORT_DIR/history/CachedPage.cpp',
@@ skipping 72 matching lines @@
     '$PORT_DIR/platform/image-decoders/xbm/XBMImageDecoder.cpp',
 
     '$PORT_DIR/platform/network/chromium/AuthenticationChallengeChromium.cpp',
     '$PORT_DIR/platform/network/chromium/CookieJarChromium.cpp',
     '$PORT_DIR/platform/network/chromium/DNSChromium.cpp',
     '$PORT_DIR/platform/network/chromium/NetworkStateNotifierChromium.cpp',
 
     '$PORT_DIR/plugins/chromium/PluginDataChromium.cpp',
 ]
 
-if env['PLATFORM'] == 'win32':
+if env.Bit('windows'):
   # Windows specific implementations.
   input_files.extend([
     '$PORT_DIR/platform/chromium/FileSystemChromiumWin.cpp',
     '$PORT_DIR/platform/chromium/ScrollBarThemeChromiumWin.cpp',
     '$PORT_DIR/platform/chromium/SoundChromiumWin.cpp',
 
     '$PORT_DIR/platform/graphics/chromium/FontCacheChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/FontPlatformDataChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/FontUtilsChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/FontChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/GlyphPageTreeNodeChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/IconChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/SimpleFontDataChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/ThemeHelperChromiumWin.cpp',
     '$PORT_DIR/platform/graphics/chromium/UniscribeHelper.cpp',
     '$PORT_DIR/platform/graphics/chromium/UniscribeHelperTextRun.cpp',
 
     '$PORT_DIR/rendering/RenderThemeWin.cpp',
   ])
 
-if env['PLATFORM'] == 'posix':
+if env.Bit('linux'):
   # Linux specific implementations.
   input_files.extend([
     '$PORT_DIR/platform/chromium/FileSystemChromiumLinux.cpp',
     '$PORT_DIR/platform/chromium/gtk2drawing.c',
     '$PORT_DIR/platform/chromium/KeyCodeConversionGtk.cpp',
     '$PORT_DIR/platform/chromium/RenderThemeGtk.cpp',
     '$PORT_DIR/platform/chromium/ScrollbarThemeChromiumLinux.cpp',
     '$PORT_DIR/platform/chromium/SoundChromiumPosix.cpp',
 
     '$PORT_DIR/platform/graphics/chromium/FontCacheLinux.cpp',
     '$PORT_DIR/platform/graphics/chromium/FontLinux.cpp',
     '$PORT_DIR/platform/graphics/chromium/FontPlatformDataLinux.cpp',
     '$PORT_DIR/platform/graphics/chromium/GlyphPageTreeNodeLinux.cpp',
     '$PORT_DIR/platform/graphics/chromium/IconChromiumLinux.cpp',
     '$PORT_DIR/platform/graphics/chromium/SimpleFontDataLinux.cpp',
 
     '$PORT_DIR/platform/graphics/skia/GdkSkia.cc',
   ])
 
   # Remove from the list files that haven't yet been made portable to Linux.
   to_be_ported_files = [
     '$PORT_DIR/platform/graphics/chromium/FontCustomPlatformData.cpp',
   ]
   input_files = list(set(input_files) - set(to_be_ported_files))
 
-if env['PLATFORM'] == 'darwin':
+if env.Bit('mac'):
   # Mac specific implementations.
   input_files.extend([
     '$PORT_DIR/bridge/mac/FrameMac.mm',
     '$PORT_DIR/page/EventHandlerMac.mm',
     '$PORT_DIR/page/WebCoreFrameBridge.mm',
     '$PORT_DIR/platform/GKURLMac.mm',
     '$PORT_DIR/platform/PluginStubsMac.cpp',
     '$PORT_DIR/platform/mac/DragDataMac.mm',
     '$PORT_DIR/platform/graphics/mac/FontCacheMacPending.cpp',
+    '$PORT_DIR/platform/graphics/skia/public/PlatformCanvasMac.cpp',
+    '$PORT_DIR/platform/graphics/skia/public/PlatformDeviceMac.cpp',
     '$PORT_DIR/rendering/RenderThemeMac.mm',
   ])
 
   # Remove from the list files that haven't yet been made portable to Mac.
   to_be_ported_files = [
     '$PORT_DIR/page/chromium/AXObjectCacheChromium.cpp',
     '$PORT_DIR/page/chromium/EventHandlerChromium.cpp',
     '$PORT_DIR/platform/chromium/CursorChromium.cpp',
     '$PORT_DIR/platform/chromium/DragDataChromium.cpp',
     '$PORT_DIR/platform/chromium/PopupMenuChromium.cpp',
     '$PORT_DIR/platform/chromium/WidgetChromium.cpp',
     '$PORT_DIR/platform/chromium/ScrollbarThemeChromium.cpp',
     '$PORT_DIR/platform/graphics/chromium/FontCustomPlatformData.cpp',
     '$PORT_DIR/platform/graphics/skia/ImageSkia.cpp',
   ]
   input_files = list(set(input_files) - set(to_be_ported_files))
 
 if env.get('KJS'):
   input_files.extend([
     '$PORT_DIR/bridge/KJSBridge.cpp',
     '$PORT_DIR/bridge/ScriptControllerKJS.cpp',
   ])
 else:
   input_files.extend([
     '$PORT_DIR/bindings/v8/ScriptController.cpp',
   ])
 
 env.ChromeStaticLibrary("port", input_files)