Continue with the FreeBSD port - this version builds and links, though...

app/gfx/canvas.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 APP_GFX_CANVAS_H_
 #define APP_GFX_CANVAS_H_
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "skia/ext/platform_canvas.h"
 
-#if defined(OS_LINUX)
+#if defined(USE_X11)
 typedef struct _cairo cairo_t;
 typedef struct _GdkPixbuf GdkPixbuf;
 #endif
 
 namespace gfx {
 
 class Font;
 class Rect;
 
 // Canvas is a SkCanvas subclass that provides a number of methods for common
@@ skipping 147 matching lines @@
   void DrawFocusRect(int x, int y, int width, int height);
 
   // Tiles the image in the specified region.
   void TileImageInt(const SkBitmap& bitmap, int x, int y, int w, int h);
   void TileImageInt(const SkBitmap& bitmap, int src_x, int src_y,
                     int dest_x, int dest_y, int w, int h);
 
   // Extracts a bitmap from the contents of this canvas.
   SkBitmap ExtractBitmap();
 
-#if defined(OS_LINUX)
+#if defined(USE_X11)
   // Applies current matrix on the canvas to the cairo context. This should be
   // invoked anytime you plan on drawing directly to the cairo context. Be
   // sure and set the matrix back to the identity when done.
   void ApplySkiaMatrixToCairoContext(cairo_t* cr);
 
   // Draw the pixbuf in its natural size at (x, y).
   void DrawGdkPixbuf(GdkPixbuf* pixbuf, int x, int y);
 #endif
 
   // Compute the size required to draw some text with the provided font.
@@ skipping 12 matching lines @@
                      const SkColor& color, int x, int y, int w, int h,
                      int flags);
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(Canvas);
 };
 
 }  // namespace gfx;
 
 #endif  // APP_GFX_CANVAS_H_