Add sync in vulkan when writing to linear texture

src/gpu/vk/GrVkGpu.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 "GrVkGpu.h"
 
 #include "GrContextOptions.h"
@@ skipping 261 matching lines @@
                 VkPipelineStageFlags dstStageMask = VK_PIPELINE_STAGE_HOST_BIT;
                 VkAccessFlags srcAccessMask = GrVkMemory::LayoutToSrcAccessMask(layout);
                 VkAccessFlags dstAccessMask = VK_ACCESS_HOST_WRITE_BIT;
                 vkTex->setImageLayout(this,
                                       VK_IMAGE_LAYOUT_GENERAL,
                                       srcAccessMask,
                                       dstAccessMask,
                                       srcStageMask,
                                       dstStageMask,
                                       false);
+                this->submitCommandBuffer(kForce_SyncQueue);
             }
             success = this->uploadTexDataLinear(vkTex, left, top, width, height, config,
                                                 texels.begin()->fPixels, texels.begin()->fRowBytes);
         } else {
             int newMipLevels = texels.count();
             int currentMipLevels = vkTex->texturePriv().maxMipMapLevel();
             if ((currentMipLevels || newMipLevels != 1) && newMipLevels != currentMipLevels) {
                 if (!vkTex->reallocForMipmap(this, newMipLevels)) {
                     return false;
                 }
@@ skipping 1515 matching lines @@
     aglSwapBuffers(aglGetCurrentContext());
     int set_a_break_pt_here = 9;
     aglSwapBuffers(aglGetCurrentContext());
 #elif defined(SK_BUILD_FOR_WIN32)
     SwapBuf();
     int set_a_break_pt_here = 9;
     SwapBuf();
 #endif
 #endif
 }