Revert of make gm background colors 565 compatible

gm/anisotropic.cpp

 /*
  * Copyright 2015 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"
 
 namespace skiagm {
 
 // This GM exercises HighQuality anisotropic filtering.
 class AnisotropicGM : public GM {
 public:
     AnisotropicGM() : fFilterQuality(kHigh_SkFilterQuality) {
-        this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC));
+        this->setBGColor(0xFFCCCCCC);
     }
 
 protected:
 
     SkString onShortName() override { return SkString("anisotropic_hq"); }
 
     SkISize onISize() override {
         return SkISize::Make(2*kImageSize + 3*kSpacer,
                              kNumVertImages*kImageSize + (kNumVertImages+1)*kSpacer);
     }
@@ skipping 78 matching lines @@
     SkFilterQuality  fFilterQuality;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return SkNEW(AnisotropicGM); )
 
 }