Port SkBase64 test to our test driver.

src/utils/SkBase64.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.
  */
 
-
 #ifndef SkBase64_DEFINED
 #define SkBase64_DEFINED
 
 #include "SkTypes.h"
 
 struct SkBase64 {
 public:
     enum Error {
         kNoError,
         kPadError,
         kBadCharError
     };
 
     SkBase64();
+
     Error decode(const char* src, size_t length);
+
     char* getData() { return fData; }
+
+    size_t length() const { return fLength; }

[mtklein, 2014/01/30 02:33:02]

Let's drop this and remove that assert in the test.  There's not much point
adding to the public API just to test it.  (If we ever find the need to call
length() outside the tests, we'll put it back.)

[tfarina, 2014/01/30 02:44:59]

Done.

+
     /**
        Base64 encodes src into dst. encode is a pointer to at least 65 chars.
        encode[64] will be used as the pad character. Encodings other than the
        default encoding cannot be decoded.
     */
     static size_t Encode(const void* src, size_t length, void* dest, const char* encode = NULL);
 
-#ifdef SK_SUPPORT_UNITTEST
-    static void UnitTest();
-#endif
 private:
     Error decode(const void* srcPtr, size_t length, bool writeDestination);
 
     size_t fLength;
     char* fData;
     friend class SkImageBaseBitmap;
 };
 
 #endif // SkBase64_DEFINED