Ensure all source files end in a newline.

This fixes compile errors on OSX.

BUG=angle:773

Change-Id: I11ce9fd470a54b08656a62afc50586e5d2f987d8
Reviewed-on: https://chromium-review.googlesource.com/238446
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/VertexArray.cpp b/src/libANGLE/VertexArray.cpp
index cb3bfd3..3fa6d5c 100644
--- a/src/libANGLE/VertexArray.cpp
+++ b/src/libANGLE/VertexArray.cpp
@@ -93,4 +93,4 @@
     mVertexArray->setElementArrayBuffer(buffer);
 }
 
-}
\ No newline at end of file
+}