Update how we send draws to gpu backend to reduce state setting.

src/gpu/batches/GrAAHairLinePathRenderer.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrAAHairLinePathRenderer.h"
 
 #include "GrBatchFlushState.h"
@@ skipping 842 matching lines @@
                                             &lines, &quads, &conics, &qSubdivs, &cWeights);
     }
 
     int lineCount = lines.count() / 2;
     int conicCount = conics.count() / 3;
 
     // do lines first
     if (lineCount) {
         SkAutoTUnref<const GrIndexBuffer> linesIndexBuffer(
             ref_lines_index_buffer(target->resourceProvider()));
-        target->initDraw(lineGP, this->pipeline());
+        target->initDraw(lineGP);
 
         const GrVertexBuffer* vertexBuffer;
         int firstVertex;
 
         size_t vertexStride = lineGP->getVertexStride();
         int vertexCount = kLineSegNumVertices * lineCount;
         LineVertex* verts = reinterpret_cast<LineVertex*>(
             target->makeVertexSpace(vertexStride, vertexCount, &vertexBuffer, &firstVertex));
 
         if (!verts|| !linesIndexBuffer) {
             SkDebugf("Could not allocate vertices\n");
             return;
         }
 
         SkASSERT(lineGP->getVertexStride() == sizeof(LineVertex));
 
         for (int i = 0; i < lineCount; ++i) {
             add_line(&lines[2*i], toSrc, this->coverage(), &verts);
         }
 
         {
-            GrVertices vertices;
-            vertices.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, linesIndexBuffer,
-                                   firstVertex, kLineSegNumVertices, kIdxsPerLineSeg, lineCount,
-                                   kLineSegsNumInIdxBuffer);
-            target->draw(vertices);
+            GrMesh mesh;
+            mesh.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, linesIndexBuffer,
+                               firstVertex, kLineSegNumVertices, kIdxsPerLineSeg, lineCount,
+                               kLineSegsNumInIdxBuffer);
+            target->draw(mesh);
         }
     }
 
     if (quadCount || conicCount) {
         const GrVertexBuffer* vertexBuffer;
         int firstVertex;
 
         SkAutoTUnref<const GrIndexBuffer> quadsIndexBuffer(
             ref_quads_index_buffer(target->resourceProvider()));
 
@@ skipping 15 matching lines @@
             SkASSERT(qSubdivs[i] >= 0);
             add_quads(&quads[3*i], qSubdivs[i], toDevice, toSrc, &bezVerts);
         }
 
         // Start Conics
         for (int i = 0; i < conicCount; ++i) {
             add_conics(&conics[3*i], cWeights[i], toDevice, toSrc, &bezVerts);
         }
 
         if (quadCount > 0) {
-            target->initDraw(quadGP, this->pipeline());
+            target->initDraw(quadGP);
 
             {
-                GrVertices tempVerts;
-                tempVerts.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, quadsIndexBuffer,
-                                        firstVertex, kQuadNumVertices, kIdxsPerQuad, quadCount,
-                                        kQuadsNumInIdxBuffer);
-                target->draw(tempVerts);
+                GrMesh mesh;
+                mesh.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, quadsIndexBuffer,
+                                   firstVertex, kQuadNumVertices, kIdxsPerQuad, quadCount,
+                                   kQuadsNumInIdxBuffer);
+                target->draw(mesh);
                 firstVertex += quadCount * kQuadNumVertices;
            }
         }
 
         if (conicCount > 0) {
-            target->initDraw(conicGP, this->pipeline());
+            target->initDraw(conicGP);
 
             {
-                GrVertices tempVerts;
-                tempVerts.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, quadsIndexBuffer,
-                                        firstVertex, kQuadNumVertices, kIdxsPerQuad, conicCount,
-                                        kQuadsNumInIdxBuffer);
-                target->draw(tempVerts);
+                GrMesh mesh;
+                mesh.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, quadsIndexBuffer,
+                                   firstVertex, kQuadNumVertices, kIdxsPerQuad, conicCount,
+                                   kQuadsNumInIdxBuffer);
+                target->draw(mesh);
             }
         }
     }
 }
 
 static GrDrawBatch* create_hairline_batch(GrColor color,
                                           const SkMatrix& viewMatrix,
                                           const SkPath& path,
                                           const GrStrokeInfo& stroke,
                                           const SkIRect& devClipBounds) {
@@ skipping 34 matching lines @@
     GrColor color = GrRandomColor(random);
     SkMatrix viewMatrix = GrTest::TestMatrix(random);
     GrStrokeInfo stroke(SkStrokeRec::kHairline_InitStyle);
     SkPath path = GrTest::TestPath(random);
     SkIRect devClipBounds;
     devClipBounds.setEmpty();
     return create_hairline_batch(color, viewMatrix, path, stroke, devClipBounds);
 }
 
 #endif