Implement gfx::Path on GTK.

chrome/common/gfx/path.h

 // 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.
 
-#ifndef CHROME_COMMON_GFX_CHROME_PATH_H__
-#define CHROME_COMMON_GFX_CHROME_PATH_H__
-
-#include <windows.h>
+#ifndef CHROME_COMMON_GFX_CHROME_PATH_H_
+#define CHROME_COMMON_GFX_CHROME_PATH_H_
 
 #include "base/basictypes.h"
+
+#if defined(OS_WIN)
+#include <windows.h>
+#elif defined(OS_LINUX)
+typedef struct _GdkRegion GdkRegion;
+#endif
+
 #include "SkPath.h"
 
 namespace gfx {
 
 class Path : public SkPath {
  public:
-  Path();
+  Path() : SkPath() { moveTo(0, 0); }
 
+#if defined(OS_WIN)
   // Creates a HRGN from the path. The caller is responsible for freeing
   // resources used by this region.
   HRGN CreateHRGN() const;
+#elif defined(OS_LINUX)
+  // Creates a Gdkregion from the path. The caller is responsible for freeing
+  // resources used by this region.
+  GdkRegion* CreateGdkRegion() const;
+#endif
 
  private:
-  DISALLOW_EVIL_CONSTRUCTORS(Path);
+  DISALLOW_COPY_AND_ASSIGN(Path);
 };
 
 }
 
-#endif  // #ifndef CHROME_COMMON_GFX_CHROME_PATH_H__
-
+#endif  // #ifndef CHROME_COMMON_GFX_CHROME_PATH_H_