Deleted OS_WIN and all Windows specific files from base.

base/process/process.h

Index: base/process/process.h
diff --git a/base/process/process.h b/base/process/process.h
index 1559554c011f2bb3f389ac03427daa018273ac90..a95442fd0c68408167403c9d9fadf39ffdc2b410 100644
--- a/base/process/process.h
+++ b/base/process/process.h
@@ -12,10 +12,6 @@
 #include "base/time/time.h"
 #include "build/build_config.h"
 
-#if defined(OS_WIN)
-#include "base/win/scoped_handle.h"
-#endif
-
 namespace base {
 
 // Provides a move-only encapsulation of a process.
@@ -57,12 +53,6 @@ class BASE_EXPORT Process {
   // address space and duplicate handles).
   static Process OpenWithExtraPrivileges(ProcessId pid);
 
-#if defined(OS_WIN)
-  // Returns a Process for the given |pid|, using some |desired_access|.
-  // See ::OpenProcess documentation for valid |desired_access|.
-  static Process OpenWithAccess(ProcessId pid, DWORD desired_access);
-#endif
-
   // Creates an object from a |handle| owned by someone else.
   // Don't use this for new code. It is only intended to ease the migration to
   // a strict ownership model.
@@ -144,12 +134,7 @@ class BASE_EXPORT Process {
   int GetPriority() const;
 
  private:
-#if defined(OS_WIN)
-  bool is_current_process_;
-  win::ScopedHandle process_;
-#else
   ProcessHandle process_;
-#endif
 };
 
 }  // namespace base