Force linking with image decoders for images project.

tools/skimage_main.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkColorPriv.h"
 #include "SkCommandLineFlags.h"
@@ skipping 274 matching lines @@
 
     bool failed = print_strings("Invalid files", gInvalidStreams);
     failed |= print_strings("Missing codec", gMissingCodecs);
     failed |= print_strings("Failed to decode", gDecodeFailures);
     failed |= print_strings("Failed to encode", gEncodeFailures);
     print_strings("Decoded", gSuccessfulDecodes);
 
     return failed ? -1 : 0;
 }
 
-void forceLinking();
-
-void forceLinking() {
-    // This function leaks, but that is okay because it is not intended
-    // to be called. It is only here so that the linker will include the
-    // decoders.
-    SkDEBUGCODE(SkImageDecoder *creator = ) CreateJPEGImageDecoder();
-    SkASSERT(creator);
-    SkDEBUGCODE(creator = ) CreateWEBPImageDecoder();
-    SkASSERT(creator);
-#ifdef SK_BUILD_FOR_UNIX
-    SkDEBUGCODE(creator = ) CreateGIFImageDecoder();
-    SkASSERT(creator);
-#endif
-}
-
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif