Style bikeshed - remove extraneous whitespace

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1842753002

Review URL: https://codereview.chromium.org/1842753002
diff --git a/src/gpu/GrPaint.cpp b/src/gpu/GrPaint.cpp
index c381562..af93e8f 100644
--- a/src/gpu/GrPaint.cpp
+++ b/src/gpu/GrPaint.cpp
@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2013 Google Inc.
  *
@@ -57,7 +56,7 @@
         GrPorterDuffXPFactory::SrcOverInvariantBlendedColor(colorProcInfo.color(),
                                                             colorProcInfo.validFlags(),
                                                             colorProcInfo.isOpaque(),
-                                                            &blendedColor); 
+                                                            &blendedColor);
     }
 
     if (kRGBA_GrColorComponentFlags == blendedColor.fKnownColorFlags) {