Deleted OS_WIN and all Windows specific files from base.

base/process/process_iterator.h

Index: base/process/process_iterator.h
diff --git a/base/process/process_iterator.h b/base/process/process_iterator.h
index ec6500e653cfbf2e6ff3240a9ea59857c7d1e64c..d024d08475a86c19b9b906e74179683238c0211f 100644
--- a/base/process/process_iterator.h
+++ b/base/process/process_iterator.h
@@ -17,10 +17,7 @@
 #include "base/process/process.h"
 #include "build/build_config.h"
 
-#if defined(OS_WIN)
-#include <windows.h>
-#include <tlhelp32.h>
-#elif defined(OS_MACOSX) || defined(OS_OPENBSD)
+#if defined(OS_MACOSX) || defined(OS_OPENBSD)
 #include <sys/sysctl.h>
 #elif defined(OS_FREEBSD)
 #include <sys/user.h>
@@ -30,13 +27,7 @@
 
 namespace base {
 
-#if defined(OS_WIN)
-struct ProcessEntry : public PROCESSENTRY32 {
-  ProcessId pid() const { return th32ProcessID; }
-  ProcessId parent_pid() const { return th32ParentProcessID; }
-  const wchar_t* exe_file() const { return szExeFile; }
-};
-#elif defined(OS_POSIX)
+#if defined(OS_POSIX)
 struct BASE_EXPORT ProcessEntry {
   ProcessEntry();
   ~ProcessEntry();
@@ -103,10 +94,7 @@ class BASE_EXPORT ProcessIterator {
   // use with Process32First/Process32Next.
   void InitProcessEntry(ProcessEntry* entry);
 
-#if defined(OS_WIN)
-  HANDLE snapshot_;
-  bool started_iteration_;
-#elif defined(OS_MACOSX) || defined(OS_BSD)
+#if defined(OS_MACOSX) || defined(OS_BSD)
   std::vector<kinfo_proc> kinfo_procs_;
   size_t index_of_kinfo_proc_;
 #elif defined(OS_POSIX)