Rename lots of things from 'sRGB' to 'GammaCorrect', where appropriate

src/gpu/text/GrDistanceFieldAdjustTable.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 "GrDistanceFieldAdjustTable.h"
 
 #include "SkScalerContext.h"
@@ skipping 76 matching lines @@
                 break;
             }
         }
     }
 
     return table;
 }
 
 void GrDistanceFieldAdjustTable::buildDistanceAdjustTables() {
     fTable = build_distance_adjust_table(SK_GAMMA_EXPONENT, SK_GAMMA_EXPONENT);
-    fSRGBTable = build_distance_adjust_table(SK_Scalar1, SK_Scalar1);
+    fGammaCorrectTable = build_distance_adjust_table(SK_Scalar1, SK_Scalar1);
 }