Add command buffer submits before copy calls in vulkan.

src/gpu/vk/GrVkGpu.cpp

Index: src/gpu/vk/GrVkGpu.cpp
diff --git a/src/gpu/vk/GrVkGpu.cpp b/src/gpu/vk/GrVkGpu.cpp
index a72b51734049ef907edaf61b8e5990adf5240974..c14321937fe9004ab044b607d95aa0fc4ecc8e6b 100644
--- a/src/gpu/vk/GrVkGpu.cpp
+++ b/src/gpu/vk/GrVkGpu.cpp
@@ -380,6 +380,10 @@ void GrVkGpu::resolveImage(GrVkRenderTarget* dst, GrVkRenderTarget* src, const S
     SkASSERT(dst);
     SkASSERT(src && src->numColorSamples() > 1 && src->msaaImage());
 
+    if (this->vkCaps().mustSubmitCommandsBeforeCopyOp()) {
+        this->submitCommandBuffer(GrVkGpu::kSkip_SyncQueue);
+    }
+
     // Flip rect if necessary
     SkIRect srcVkRect = srcRect;
     int32_t dstY = dstPoint.fY;
@@ -843,6 +847,10 @@ void GrVkGpu::generateMipmap(GrVkTexture* tex) {
         return;
     }
 
+    if (this->vkCaps().mustSubmitCommandsBeforeCopyOp()) {
+        this->submitCommandBuffer(kSkip_SyncQueue);
+    }
+
     // We may need to resolve the texture first if it is also a render target
     GrVkRenderTarget* texRT = static_cast<GrVkRenderTarget*>(tex->asRenderTarget());
     if (texRT) {
@@ -1577,6 +1585,10 @@ bool GrVkGpu::onCopySurface(GrSurface* dst,
         return true;
     }
 
+    if (this->vkCaps().mustSubmitCommandsBeforeCopyOp()) {
+        this->submitCommandBuffer(GrVkGpu::kSkip_SyncQueue);
+    }
+
     if (fCopyManager.copySurfaceAsDraw(this, dst, src, srcRect, dstPoint)) {
         return true;
     }