Change DPLOG(ERROR) to DVPLOG(1) in zip_reader

All other logging in that file is DVLOG(1), so be consistent

R=satorux@chromium.org

Change-Id: I1c0dc9128cc3c681b6c26dd169fe73a7323af97b
Reviewed-on: https://chromium-review.googlesource.com/975602Reviewed-by: Satoru Takabayashi <satorux@chromium.org>
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548202}

third_party/zlib/google/zip_reader.cc

@@ -441,7 +441,7 @@ FileWriterDelegate::FileWriterDelegate(std::unique_ptr<base::File> file)
 
 FileWriterDelegate::~FileWriterDelegate() {
   if (!file_->SetLength(file_length_)) {
-    DPLOG(ERROR) << "Failed updating length of written file";
+    DVPLOG(1) << "Failed updating length of written file";
   }
 }