Content Verification: Don't access UI-thread objects on the IO thread

extensions/browser/content_verify_job.cc

Index: extensions/browser/content_verify_job.cc
diff --git a/extensions/browser/content_verify_job.cc b/extensions/browser/content_verify_job.cc
index 1bf68cb6a6bada05f471d5ed5c8fe173390dc1d3..f8618bc02e9bfc525240a940ad533d2e36cc090b 100644
--- a/extensions/browser/content_verify_job.cc
+++ b/extensions/browser/content_verify_job.cc
@@ -137,15 +137,16 @@ bool ContentVerifyJob::FinishBlock() {
     return true;
   std::string final(crypto::kSHA256Length, 0);
   current_hash_->Finish(string_as_array(&final), final.size());
+  current_hash_.reset();
+  current_hash_byte_count_ = 0;
+
+  int block = current_block_++;
 
   const std::string* expected_hash = NULL;
-  if (!hash_reader_->GetHashForBlock(current_block_, &expected_hash) ||
+  if (!hash_reader_->GetHashForBlock(block, &expected_hash) ||
       *expected_hash != final)
     return false;
 
-  current_hash_.reset();
-  current_hash_byte_count_ = 0;
-  current_block_++;
   return true;
 }