Add option to dump images from nanobench.

include/core/SkOSFile.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 // TODO: add unittests for all these operations
@@ skipping 105 matching lines @@
 #elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_IOS)
         DIR*        fDIR;
         SkString    fPath, fSuffix;
 #endif
     };
 };
 
 /**
  *  Functions for modifying SkStrings which represent paths on the filesystem.
  */
-class SkOSPath {
+class SkOSPath   {
 public:
     /**
      * Assembles rootPath and relativePath into a single path, like this:
      * rootPath/relativePath.
      * It is okay to call with a NULL rootPath and/or relativePath. A path
      * separator will still be inserted.
      *
      * Uses SkPATH_SEPARATOR, to work on all platforms.
      */
     static SkString Join(const char* rootPath, const char* relativePath);
 
     /**
      *  Return the name of the file, ignoring the directory structure.
      *  Behaves like python's os.path.basename. If the fullPath is
      *  /dir/subdir/, an empty string is returned.
      *  @param fullPath Full path to the file.
      *  @return SkString The basename of the file - anything beyond the
      *      final slash, or the full name if there is no slash.
      */
     static SkString Basename(const char* fullPath);
+
+    /**
+     *  Given a qualified file name returns the directory.
+     *  Behaves like python's os.path.dirname. If the fullPath is
+     *  /dir/subdir/ the return will be /dir/subdir/
+     *  @param fullPath Full path to the file.
+     *  @return SkString The dir containing the file - anything preceding the
+     *      final slash, or the full name if ending in a slash.
+     */
+    static SkString Dirname(const char* fullPath);
+    
 };
 
 #endif