Style bikeshed - remove extraneous whitespace

gm/colormatrix.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkColorMatrixFilter.h"
 #include "SkGradientShader.h"
@@ skipping 17 matching lines @@
     }
 
 protected:
     SkString onShortName() override {
         return SkString("colormatrix");
     }
 
     SkISize onISize() override {
         return SkISize::Make(WIDTH, HEIGHT);
     }
-    
+
     void onOnceBeforeDraw() override {
         fSolidImg = CreateSolidBitmap(64, 64);
         fTransparentImg = CreateTransparentBitmap(64, 64);
     }
 
     static sk_sp<SkImage> CreateSolidBitmap(int width, int height) {
         SkBitmap bm;
         bm.allocN32Pixels(width, height);
         SkCanvas canvas(bm);
         canvas.clear(0x0);
@@ skipping 89 matching lines @@
         }
     }
 
 private:
     sk_sp<SkImage>   fSolidImg;
     sk_sp<SkImage>   fTransparentImg;
 
     typedef skiagm::GM INHERITED;
 };
 DEF_GM( return new ColorMatrixGM; )
-