Stop aggregating texture/buffer access objects in GrFragmentProcessor parents.

src/gpu/vk/GrVkGpuCommandBuffer.cpp

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "GrVkGpuCommandBuffer.h"
 
 #include "GrFixedClip.h"
@@ skipping 377 matching lines @@
                                   int meshCount) {
     if (!meshCount) {
         return;
     }
     GrRenderTarget* rt = pipeline.getRenderTarget();
     GrVkRenderTarget* vkRT = static_cast<GrVkRenderTarget*>(rt);
     const GrVkRenderPass* renderPass = vkRT->simpleRenderPass();
     SkASSERT(renderPass);
 
     prepare_sampled_images(primProc, fGpu);
-    for (int i = 0; i < pipeline.numFragmentProcessors(); ++i) {
-        prepare_sampled_images(pipeline.getFragmentProcessor(i), fGpu);
+    GrFragmentProcessor::Iter iter(pipeline);
+    while (const GrFragmentProcessor* fp = iter.next()) {
+        prepare_sampled_images(*fp, fGpu);
     }
     prepare_sampled_images(pipeline.getXferProcessor(), fGpu);
 
     GrPrimitiveType primitiveType = meshes[0].primitiveType();
     sk_sp<GrVkPipelineState> pipelineState = this->prepareDrawState(pipeline,
                                                                     primProc,
                                                                     primitiveType,
                                                                     *renderPass);
     if (!pipelineState) {
         return;
@@ skipping 41 matching lines @@
             fGpu->stats()->incNumDraws();
         } while ((nonIdxMesh = iter.next()));
     }
 
     // Technically we don't have to call this here (since there is a safety check in
     // pipelineState:setData but this will allow for quicker freeing of resources if the
     // pipelineState sits in a cache for a while.
     pipelineState->freeTempResources(fGpu);
 }