Treats empty gzipped data as unzipped in web_ui_url_loader_factory.cc

Bug: 793772
Change-Id: Ia9175cf484ba3d26c24d89a4bfcb42b1328b894b
Reviewed-on: https://chromium-review.googlesource.com/818373Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Tsuyoshi Horo <horo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#523319}

content/browser/webui/web_ui_url_loader_factory.cc

@@ -71,6 +71,10 @@ void ReadData(scoped_refptr<ResourceResponse> headers,
   base::StringPiece input(reinterpret_cast<const char*>(bytes->front()),
                           bytes->size());
 
+  // Treats empty gzipped data as unzipped.
+  if (!bytes->size())
+    gzipped = false;
+
   if (replacements) {
     std::string temp_string;
     // We won't know the the final output size ahead of time, so we have to