Cleanup: Remove unneeded forward declarations in printing, sandbox, and skia.

skia/ext/platform_device.h

Index: skia/ext/platform_device.h
===================================================================
--- skia/ext/platform_device.h	(revision 109941)
+++ skia/ext/platform_device.h	(working copy)
@@ -13,17 +13,15 @@
 #include <vector>
 #endif
 
-#include "third_party/skia/include/core/SkPreConfig.h"
-#include "third_party/skia/include/core/SkDevice.h"
 #include "third_party/skia/include/core/SkColor.h"
+#include "third_party/skia/include/core/SkDevice.h"
+#include "third_party/skia/include/core/SkPreConfig.h"
 
 class SkMatrix;
 class SkMetaData;
 class SkPath;
 class SkRegion;
 
-struct SkIRect;
-
 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_FREEBSD) \
     || defined(OS_SUN)
 typedef struct _cairo cairo_t;
@@ -73,7 +71,7 @@
 #if defined(OS_WIN)
 // Initializes the default settings and colors in a device context.
 SK_API void InitializeDC(HDC context);
-#elif defined (OS_MACOSX)
+#elif defined(OS_MACOSX)
 // Returns the CGContext that backing the SkDevice.  Forwards to the bound
 // PlatformDevice.  Returns NULL if no PlatformDevice is bound.
 SK_API CGContextRef GetBitmapContext(SkDevice* device);
@@ -179,4 +177,4 @@
 
 }  // namespace skia
 
-#endif
+#endif  // SKIA_EXT_PLATFORM_DEVICE_H_