Use the system stdint.h on Windows.

This is now possible since VC2010 and later provide a stdint.h. VC2008
has been deprecated for building Chromium for a full year now.

There are a number of stdint.h implementations in the codebase, some of
which hide others, and most of which are not complete, and some are not
named stdint.h. The one here in icu is pwin32.h and it is the last file
which implements parts of stdint.h which prevents Blink from using the
system stdint.h.

R=jshin@chromium.org

Review URL: https://codereview.chromium.org/27079003

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu46@228516 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
diff --git a/patches/vs2012.patch b/patches/vs2012.patch
index 8ede5d3..e5a58e8 100644
--- a/patches/vs2012.patch
+++ b/patches/vs2012.patch
@@ -11,15 +11,15 @@
  const int32_t StringPiece::npos;
  #endif
 
-Index: public/common/unicode/pwin32.h
+Index: source/common/unicode/pwin32.h
 ===================================================================
---- public/common/unicode/pwin32.h      (revision 158118)
-+++ public/common/unicode/pwin32.h      (working copy)
+--- source/common/unicode/pwin32.h      (revision 158118)
++++ source/common/unicode/pwin32.h      (working copy)
 @@ -26,6 +26,10 @@
  #define U_WINDOWS
  #endif
 
-+#if _MSC_VER >= 1700
++#if _MSC_VER >= 1600
 +#include <stdint.h>
 +#endif
 +
diff --git a/source/common/unicode/pwin32.h b/source/common/unicode/pwin32.h
index b3f994c..da3401d 100644
--- a/source/common/unicode/pwin32.h
+++ b/source/common/unicode/pwin32.h
@@ -26,7 +26,7 @@
 #define U_WINDOWS
 #endif
 
-#if _MSC_VER >= 1700
+#if _MSC_VER >= 1600
 #include <stdint.h>
 #endif