Start using GrGpuCommandBuffer in GrDrawTarget.

tests/VkClearTests.cpp

Index: tests/VkClearTests.cpp
diff --git a/tests/VkClearTests.cpp b/tests/VkClearTests.cpp
index 4a8c9667813ff551048e3939605de3093c2aff38..cced84439d9e5db1dc5a2e0f1a32f17ec3a90c00 100644
--- a/tests/VkClearTests.cpp
+++ b/tests/VkClearTests.cpp
@@ -48,8 +48,8 @@ bool does_full_buffer_contain_correct_color(GrColor* buffer,
 }
 
 void basic_clear_test(skiatest::Reporter* reporter, GrContext* context, GrPixelConfig config) {
+#if 0

[egdaniel, 2016/06/16 20:13:35]

currently these test don't work since doing clears on VK isn't implemented with
new command buffer system. Even when we add the command buffer support, sub
clears will probably be the only one directly implemented and testable.

     GrVkGpu* gpu = static_cast<GrVkGpu*>(context->getGpu());
-    gpu->discard(NULL);
     SkAutoTMalloc<GrColor> buffer(25);
 
     GrSurfaceDesc surfDesc;
@@ -95,15 +95,16 @@ void basic_clear_test(skiatest::Reporter* reporter, GrContext* context, GrPixelC
                                                                      config,
                                                                      5,
                                                                      5));
+#endif
 }
 
 void sub_clear_test(skiatest::Reporter* reporter, GrContext* context, GrPixelConfig config) {
+#if 0
     const int width = 10;
     const int height = 10;
     const int subWidth = width/2;
     const int subHeight = height/2;
     GrVkGpu* gpu = static_cast<GrVkGpu*>(context->getGpu());
-    gpu->discard(NULL);
     SkAutoTMalloc<GrColor> buffer(width * height);
     SkAutoTMalloc<GrColor> subBuffer(subWidth * subHeight);
 
@@ -194,6 +195,7 @@ void sub_clear_test(skiatest::Reporter* reporter, GrContext* context, GrPixelCon
                                                                      config,
                                                                      subWidth,
                                                                      subHeight));
+#endif
 }
 
 DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkClearTests, reporter, ctxInfo) {