aura: Track mouse button state.

ui/aura/window_unittest.cc

Index: ui/aura/window_unittest.cc
diff --git a/ui/aura/window_unittest.cc b/ui/aura/window_unittest.cc
index e41a39170573ce80e8c23ba72ccb879994f5e445..7406406a29b28c9d26d9bf03be2f421c546b9a0b 100644
--- a/ui/aura/window_unittest.cc
+++ b/ui/aura/window_unittest.cc
@@ -4,6 +4,8 @@
 
 #include "ui/aura/window.h"
 
+#include <inttypes.h>
+
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/stringprintf.h"
@@ -884,7 +886,7 @@ class WindowObserverTest : public WindowTest,
   // OnPropertyChanged callback.
   std::string PropertyChangeInfoAndClear() {
     std::string result(
-        base::StringPrintf("name=%s old=%ld new=%ld",

[Daniel Erat, 2011/11/11 00:25:57]

this was breaking compilation for 32-bit.  i'm not sure whether inttypes.h is
available on windows (sending to trybots now)

+        base::StringPrintf("name=%s old=%" PRIdPTR " new=%" PRIdPTR,
                            property_name_.c_str(),
                            old_property_value_,
                            new_property_value_));