Revert of free -> reset

src/images/SkImageDecoder_libwebp.cpp

 /*
  * Copyright 2010, The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
@@ skipping 206 matching lines @@
             success = false;
             break;
         }
 
         status = WebPIAppend(idec, input, bytesRead);
         if (VP8_STATUS_OK != status && VP8_STATUS_SUSPENDED != status) {
             success = false;
             break;
         }
     } while (VP8_STATUS_OK != status);
-    srcStorage.reset();
+    srcStorage.free();
     WebPIDelete(idec);
     WebPFreeDecBuffer(&config->output);
 
     return success;
 }
 
 static bool webp_get_config_resize(WebPDecoderConfig* config,
                                    SkBitmap* decodedBitmap,
                                    int width, int height, bool premultiply) {
     WEBP_CSP_MODE mode = webp_decode_mode(decodedBitmap, premultiply);
@@ skipping 312 matching lines @@
     return SkImageDecoder::kUnknown_Format;
 }
 
 static SkImageEncoder* sk_libwebp_efactory(SkImageEncoder::Type t) {
     return (SkImageEncoder::kWEBP_Type == t) ? new SkWEBPImageEncoder : nullptr;
 }
 
 static SkImageDecoder_DecodeReg gDReg(sk_libwebp_dfactory);
 static SkImageDecoder_FormatReg gFormatReg(get_format_webp);
 static SkImageEncoder_EncodeReg gEReg(sk_libwebp_efactory);