aura: Track mouse button state.

ui/aura/window_unittest.cc

 // Copyright (c) 2011 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 "ui/aura/window.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/stringprintf.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 868 matching lines @@
     destroyed_count_ = 0;
     return result;
   }
 
   // Return a string representation of the arguments passed in
   // OnPropertyChanged callback.
   std::string PropertyChangeInfoAndClear() {
     std::string result(
         base::StringPrintf("name=%s old=%ld new=%ld",
                            property_name_.c_str(),
-                           old_property_value_,
-                           new_property_value_));
+                           static_cast<long>(old_property_value_),
+                           static_cast<long>(new_property_value_)));
     property_name_.clear();
     old_property_value_ = 0;
     new_property_value_ = 0;
     return result;
   }
 
  private:
   virtual void OnWindowAdded(Window* new_window) OVERRIDE {
     added_count_++;
   }
@@ skipping 179 matching lines @@
 
   w3->Activate();
   EXPECT_EQ(w2.get(), active());
 
   w1->Activate();
   EXPECT_EQ(w1.get(), active());
 }
 
 }  // namespace test
 }  // namespace aura