Iterate over instanced draws in GrGpu rather than above GrBatchTarget

src/gpu/GrAtlasTextContext.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 "GrAtlasTextContext.h"
 
 #include "GrBatch.h"
 #include "GrBatchFontCache.h"
@@ skipping 1820 matching lines @@
         GrPipelineInfo init;
         init.fColorIgnored = fBatch.fColorIgnored;
         init.fOverrideColor = GrColor_ILLEGAL;
         init.fCoverageIgnored = fBatch.fCoverageIgnored;
         init.fUsesLocalCoords = this->usesLocalCoords();
         gp->initBatchTracker(batchTarget->currentBatchTracker(), init);
     }
 
     void flush(GrBatchTarget* batchTarget, FlushInfo* flushInfo) {
         GrVertices vertices;
-        int glyphsToFlush = flushInfo->fGlyphsToFlush;
         int maxGlyphsPerDraw = flushInfo->fIndexBuffer->maxQuads();
         vertices.initInstanced(kTriangles_GrPrimitiveType, flushInfo->fVertexBuffer,
                                flushInfo->fIndexBuffer, flushInfo->fVertexOffset,
-                               kVerticesPerGlyph, kIndicesPerGlyph, &glyphsToFlush,
+                               kVerticesPerGlyph, kIndicesPerGlyph, flushInfo->fGlyphsToFlush,
                                maxGlyphsPerDraw);
-        do {
-            batchTarget->draw(vertices);
-        } while (vertices.nextInstances(&glyphsToFlush, maxGlyphsPerDraw));
+        batchTarget->draw(vertices);
         flushInfo->fVertexOffset += kVerticesPerGlyph * flushInfo->fGlyphsToFlush;
         flushInfo->fGlyphsToFlush = 0;
     }
 
     GrColor color() const { return fBatch.fColor; }
     const SkMatrix& viewMatrix() const { return fBatch.fViewMatrix; }
     bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; }
     int numGlyphs() const { return fBatch.fNumGlyphs; }
 
     bool onCombineIfPossible(GrBatch* t) override {
@@ skipping 303 matching lines @@
     pipelineBuilder.setFromPaint(grPaint, rt, clip);
 
     GrColor color = grPaint.getColor();
     for (int run = 0; run < cacheBlob->fRunCount; run++) {
         this->flushRun(target, &pipelineBuilder, cacheBlob, run, color, 0, 0, skPaint);
     }
 
     // Now flush big glyphs
     this->flushBigGlyphs(cacheBlob, rt, grPaint, clip, 0, 0);
 }