Mandoline: Fix PackageManager initialization

mojo/runner/context.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 "mojo/runner/context.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 144 matching lines @@
 
  private:
   StrongBinding<ServiceProvider> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(TracingServiceProvider);
 };
 
 }  // namespace
 
 Context::Context(const base::FilePath& shell_file_root)
-    : shell_file_root_(shell_file_root), main_entry_time_(base::Time::Now()) {}
+    : shell_file_root_(shell_file_root),
+      package_manager_(nullptr),
+      main_entry_time_(base::Time::Now()) {}
 
 Context::~Context() {
   DCHECK(!base::MessageLoop::current());
 }
 
 // static
 void Context::EnsureEmbedderIsInitialized() {
   static base::LazyInstance<Setup>::Leaky setup = LAZY_INSTANCE_INITIALIZER;
   setup.Get();
 }
@@ skipping 117 matching lines @@
         base::MessageLoop::current()->Quit();
       } else {
         app_complete_callback_.Run();
       }
     }
   }
 }
 
 }  // namespace runner
 }  // namespace mojo