Only whitelist messages.json files in _locales for content verification

extensions/browser/content_hash_fetcher.cc

Index: extensions/browser/content_hash_fetcher.cc
diff --git a/extensions/browser/content_hash_fetcher.cc b/extensions/browser/content_hash_fetcher.cc
index fda8d67f08832e8b6b30fc9a2f0ed77d825caa71..4079874dfe52b683d7af4e7a0196885d8f23ad02 100644
--- a/extensions/browser/content_hash_fetcher.cc
+++ b/extensions/browser/content_hash_fetcher.cc
@@ -236,11 +236,11 @@ void ContentHashFetcherJob::DoneCheckingForVerifiedContents(bool found) {
   if (IsCancelled())
     return;
   if (found) {
-    VLOG(1) << "Found verified contents for " << extension_id_;
+    LOG(WARNING) << "Found verified contents for " << extension_id_;
     DoneFetchingVerifiedContents(true);
   } else {
-    VLOG(1) << "Missing verified contents for " << extension_id_
-            << ", fetching...";
+    LOG(WARNING) << "Missing verified contents for " << extension_id_
+                 << ", fetching...";
     url_fetcher_ =
         net::URLFetcher::Create(fetch_url_, net::URLFetcher::GET, this);
     url_fetcher_->SetRequestContext(request_context_);
@@ -264,9 +264,9 @@ static int WriteFileHelper(const base::FilePath& path,
 }
 
 void ContentHashFetcherJob::OnURLFetchComplete(const net::URLFetcher* source) {
-  VLOG(1) << "URLFetchComplete for " << extension_id_
-          << " is_success:" << url_fetcher_->GetStatus().is_success() << " "
-          << fetch_url_.possibly_invalid_spec();
+  LOG(WARNING) << "URLFetchComplete for " << extension_id_
+               << " is_success:" << url_fetcher_->GetStatus().is_success()
+               << " " << fetch_url_.possibly_invalid_spec();
   if (IsCancelled())
     return;
   std::unique_ptr<std::string> response(new std::string);
@@ -282,7 +282,7 @@ void ContentHashFetcherJob::OnURLFetchComplete(const net::URLFetcher* source) {
   // move to parsing this in a sandboxed helper (crbug.com/372878).
   std::unique_ptr<base::Value> parsed(base::JSONReader::Read(*response));
   if (parsed) {
-    VLOG(1) << "JSON parsed ok for " << extension_id_;
+    LOG(WARNING) << "JSON parsed ok for " << extension_id_;
 
     parsed.reset();  // no longer needed
     base::FilePath destination =
@@ -401,7 +401,7 @@ bool ContentHashFetcherJob::CreateHashes(const base::FilePath& hashes_file) {
     std::string root =
         ComputeTreeHashRoot(hashes, block_size_ / crypto::kSHA256Length);
     if (!verified_contents_->TreeHashRootEquals(relative_path, root)) {
-      VLOG(1) << "content mismatch for " << relative_path.AsUTF8Unsafe();
+      LOG(WARNING) << "content mismatch for " << relative_path.AsUTF8Unsafe();
       hash_mismatch_paths_.insert(relative_path);
       continue;
     }