A bit more privacy for SkiaServe's Request

tools/skiaserve/urlhandlers/PostHandler.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "UrlHandler.h"
 
 #include "microhttpd.h"
@@ skipping 44 matching lines @@
         SkASSERT(uc->fPostProcessor);
         MHD_post_process(uc->fPostProcessor, upload_data, *upload_data_size);
         *upload_data_size = 0;
         return MHD_YES;
     }
 
     // end of upload
     MHD_destroy_post_processor(uc->fPostProcessor);
     uc->fPostProcessor = nullptr;
 
-    // parse picture from stream
-    request->fPicture.reset(
-        SkPicture::CreateFromStream(request->fUploadContext->fStream.detachAsStream()));
-    if (!request->fPicture.get()) {
+    if (!request->initPictureFromStream(request->fUploadContext->fStream.detachAsStream())) {
         fprintf(stderr, "Could not create picture from stream.\n");
         return MHD_NO;
     }
-
-    // pour picture into debug canvas
-    request->fDebugCanvas.reset(new SkDebugCanvas(Request::kImageWidth,
-                                                  Request::kImageHeight));
-    request->fDebugCanvas->drawPicture(request->fPicture);
-
+    
     // clear upload context
     delete request->fUploadContext;
     request->fUploadContext = nullptr;
 
     return SendTemplate(connection, true, "/");
 }