gpu: Add flag for enabling asynchronous worker context.

content/browser/gpu/gpu_ipc_browsertests.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "build/build_config.h"
 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
 #include "content/browser/gpu/gpu_process_host_ui_shim.h"
@@ skipping 19 matching lines @@
   // any alpha, depth, stencil, antialiasing.
   gpu::gles2::ContextCreationAttribHelper attributes;
   attributes.alpha_size = -1;
   attributes.depth_size = 0;
   attributes.stencil_size = 0;
   attributes.samples = 0;
   attributes.sample_buffers = 0;
   attributes.bind_generates_resource = false;
   bool automatic_flushes = false;
   return make_scoped_refptr(new content::ContextProviderCommandBuffer(
-      std::move(gpu_channel_host), gpu::kNullSurfaceHandle, GURL(),
+      std::move(gpu_channel_host), gpu::GPU_STREAM_DEFAULT,
+      gpu::GpuStreamPriority::NORMAL, gpu::kNullSurfaceHandle, GURL(),
       gfx::PreferIntegratedGpu, automatic_flushes, gpu::SharedMemoryLimits(),
       attributes, nullptr,
       content::command_buffer_metrics::OFFSCREEN_CONTEXT_FOR_TESTING));
 }
 
 class ContextTestBase : public content::ContentBrowserTest {
  public:
   void SetUpOnMainThread() override {
     // This may leave the provider_ null in some cases, so tests need to early
     // out.
@@ skipping 230 matching lines @@
   shim->SimulateCrash();
   run_loop.Run();
 
   EXPECT_EQ(1, counter);
   EXPECT_FALSE(IsChannelEstablished());
   EstablishAndWait();
   EXPECT_TRUE(IsChannelEstablished());
 }
 
 }  // namespace content