Mojo: Add a "GetType()" to Dispatchers.

mojo/system/core_test_base.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/system/core_test_base.h"
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
@@ skipping 12 matching lines @@
 // MockDispatcher --------------------------------------------------------------
 
 class MockDispatcher : public Dispatcher {
  public:
   explicit MockDispatcher(CoreTestBase::MockHandleInfo* info)
       : info_(info) {
     CHECK(info_);
     info_->IncrementCtorCallCount();
   }
 
+  virtual Type GetType() OVERRIDE {
+    return kTypeUnknown;
+  }
+
  private:
   friend class base::RefCountedThreadSafe<MockDispatcher>;
   virtual ~MockDispatcher() {
     info_->IncrementDtorCallCount();
   }
 
   // |Dispatcher| implementation/overrides:
   virtual MojoResult CloseImplNoLock() OVERRIDE {
     info_->IncrementCloseCallCount();
     lock().AssertAcquired();
@@ skipping 294 matching lines @@
 }
 
 void CoreTestBase_MockHandleInfo::IncrementCancelAllWaitersCallCount() {
   base::AutoLock locker(lock_);
   cancel_all_waiters_call_count_++;
 }
 
 }  // namespace test
 }  // namespace system
 }  // namespace mojo