Deleted OS_WIN and all Windows specific files from base.

base/memory/shared_memory.h

Index: base/memory/shared_memory.h
diff --git a/base/memory/shared_memory.h b/base/memory/shared_memory.h
index 008bb0106688c56f66e7edea893de42b5c5c0f5a..61ce438928a0c24ec5f5e28a302315d0d5c35b1c 100644
--- a/base/memory/shared_memory.h
+++ b/base/memory/shared_memory.h
@@ -31,9 +31,7 @@ class FilePath;
 
 // SharedMemoryHandle is a platform specific type which represents
 // the underlying OS handle to a shared memory segment.
-#if defined(OS_WIN)
-typedef HANDLE SharedMemoryHandle;
-#elif defined(OS_POSIX)
+#if defined(OS_POSIX)
 typedef FileDescriptor SharedMemoryHandle;
 #endif
 
@@ -75,13 +73,6 @@ class BASE_EXPORT SharedMemory {
  public:
   SharedMemory();
 
-#if defined(OS_WIN)
-  // Similar to the default constructor, except that this allows for
-  // calling LockDeprecated() to acquire the named mutex before either Create or
-  // Open are called on Windows.
-  explicit SharedMemory(const std::wstring& name);
-#endif
-
   // Create a new SharedMemory object from an existing, open
   // shared memory file.
   //
@@ -287,10 +278,7 @@ class BASE_EXPORT SharedMemory {
                             bool close_self,
                             ShareMode);
 
-#if defined(OS_WIN)
-  std::wstring       name_;
-  HANDLE             mapped_file_;
-#elif defined(OS_POSIX)
+#if defined(OS_POSIX)
   int                mapped_file_;
   int                readonly_mapped_file_;
 #endif