Fix include guards.

BUG=angle:733

Change-Id: I08b2c11c4831f1161c178c1842b10e807185aced
Reviewed-on: https://chromium-review.googlesource.com/230831
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/compiler/preprocessor/Token.h b/src/compiler/preprocessor/Token.h
index 8832e27..347c47e 100644
--- a/src/compiler/preprocessor/Token.h
+++ b/src/compiler/preprocessor/Token.h
@@ -116,4 +116,5 @@
 extern std::ostream &operator<<(std::ostream &out, const Token &token);
 
 }  // namepsace pp
+
 #endif  // COMPILER_PREPROCESSOR_TOKEN_H_