win: sealed -> final rename, part 3/3.

base/compiler_specific.h

Index: base/compiler_specific.h
diff --git a/base/compiler_specific.h b/base/compiler_specific.h
index f4f9a11f2e00d6422e6a876e290be5f9b90124b9..9e2111db6b6e1aea9aa59beb96047c3c3ef2c3eb 100644
--- a/base/compiler_specific.h
+++ b/base/compiler_specific.h
@@ -137,9 +137,7 @@
 // method in the parent class.
 // Use like:
 //   virtual void foo() OVERRIDE;
-#if defined(COMPILER_MSVC)
-#define OVERRIDE override
-#elif defined(__clang__)
+#if defined(__clang__) || defined(COMPILER_MSVC)
 #define OVERRIDE override
 #elif defined(COMPILER_GCC) && __cplusplus >= 201103 && \
       (__GNUC__ * 10000 + __GNUC_MINOR__ * 100) >= 40700
@@ -154,13 +152,8 @@
 // Use like:
 //   virtual void foo() FINAL;
 //   class B FINAL : public A {};
-#if defined(__clang__)
+#if defined(__clang__) || defined(COMPILER_MSVC)
 #define FINAL final
-#elif defined(COMPILER_MSVC)
-// TODO(thakis): Remove if !defined() once Blink is updated too.
-#if !defined(FINAL)
-#define FINAL final
-#endif
 #elif defined(COMPILER_GCC) && __cplusplus >= 201103 && \
       (__GNUC__ * 10000 + __GNUC_MINOR__ * 100) >= 40700
 // GCC 4.7 supports explicit virtual overrides when C++11 support is enabled.