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

src/gpu/text/GrDistanceFieldAdjustTable.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDistanceFieldAdjustTable_DEFINED
 #define GrDistanceFieldAdjustTable_DEFINED
 
 #include "SkRefCnt.h"
 #include "SkScalar.h"
 
 // Distance field text needs this table to compute a value for use in the fragment shader.
 // Because the GrAtlasTextContext can go out of scope before the final flush, this needs to be
 // refcnted and malloced
 struct GrDistanceFieldAdjustTable : public SkNVRefCnt<GrDistanceFieldAdjustTable> {
     GrDistanceFieldAdjustTable() { this->buildDistanceAdjustTables(); }
     ~GrDistanceFieldAdjustTable() {
         delete[] fTable;
-        delete[] fSRGBTable;
+        delete[] fGammaCorrectTable;
     }
 
-    const SkScalar& getAdjustment(int i, bool useSRGBTable) const {
-        return useSRGBTable ? fSRGBTable[i] : fTable[i];
+    const SkScalar& getAdjustment(int i, bool useGammaCorrectTable) const {
+        return useGammaCorrectTable ? fGammaCorrectTable[i] : fTable[i];
     }
 
 private:
     void buildDistanceAdjustTables();
 
     SkScalar* fTable;
-    SkScalar* fSRGBTable;
+    SkScalar* fGammaCorrectTable;
 };
 
 #endif