Make sure to initialize a boolean in ExtensionSettingsHandler

chrome/browser/extensions/install_signer.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/install_signer.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
@@ skipping 365 matching lines @@
 
   scoped_ptr<InstallSignature> result;
   if (!signature.empty()) {
     result.reset(new InstallSignature);
     result->ids = valid_ids;
     result->salt = salt_;
     result->signature = signature;
     result->expire_date = expire_date;
     bool verified = VerifySignature(*result);
     UMA_HISTOGRAM_BOOLEAN("ExtensionInstallSigner.ResultWasValid", verified);
+    UMA_HISTOGRAM_COUNTS_100("ExtensionInstallSigner.InvalidCount",
+                             invalid_ids.size());
     if (!verified)
       result.reset();
   }
 
   if (!callback_.is_null())
     callback_.Run(result.Pass());
 }
 
 
 }  // namespace extensions