Move distance field generation to the glyph cache

src/gpu/GrDistanceFieldTextContext.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrDistanceFieldTextContext.h"
 #include "GrAtlas.h"
 #include "GrDrawTarget.h"
@@ skipping 221 matching lines @@
             SkPath* path = SkNEW(SkPath);
             if (!scaler->getGlyphPath(glyph->glyphID(), path)) {
                 // flag the glyph as being dead?
                 delete path;
                 return;
             }
             glyph->fPath = path;
         }
 
         GrContext::AutoMatrix am;
-        SkMatrix translate;
-        translate.setTranslate(sx, sy);
+        SkMatrix ctm;
+        ctm.setScale(fTextRatio, fTextRatio);
+        ctm.postTranslate(sx, sy);
         GrPaint tmpPaint(fPaint);
-        am.setPreConcat(fContext, translate, &tmpPaint);
+        am.setPreConcat(fContext, ctm, &tmpPaint);
         SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle);
         fContext->drawPath(tmpPaint, *glyph->fPath, stroke);
         return;
     }
 
 HAS_ATLAS:
     SkASSERT(glyph->fPlot);
     GrDrawTarget::DrawToken drawToken = fDrawTarget->getCurrentDrawToken();
     glyph->fPlot->setDrawToken(drawToken);
 
@@ skipping 237 matching lines @@
                                       SkScalarToFixed(y) - (glyph.fAdvanceY >> alignShift)
                                         + SK_FixedHalf, //d1g.fHalfSampleY,
                                       fontScaler);
             }
             pos += scalarsPerPosition;
         }
     }
 
     this->finish();
 }