Revert of Pass initial size and GPU preference via context attributes

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 22 matching lines @@
   attributes.depth_size = 0;
   attributes.stencil_size = 0;
   attributes.samples = 0;
   attributes.sample_buffers = 0;
   attributes.bind_generates_resource = false;
   constexpr bool automatic_flushes = false;
   constexpr bool support_locking = false;
   return make_scoped_refptr(new content::ContextProviderCommandBuffer(
       std::move(gpu_channel_host), gpu::GPU_STREAM_DEFAULT,
       gpu::GpuStreamPriority::NORMAL, gpu::kNullSurfaceHandle, GURL(),
-      automatic_flushes, support_locking, gpu::SharedMemoryLimits(), attributes,
-      nullptr, content::command_buffer_metrics::OFFSCREEN_CONTEXT_FOR_TESTING));
+      gl::PreferIntegratedGpu, automatic_flushes, support_locking,
+      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.
     if (!content::BrowserGpuChannelHostFactory::CanUseForTesting())
       return;
 
@@ skipping 227 matching lines @@
   shim->SimulateCrash();
   run_loop.Run();
 
   EXPECT_EQ(1, counter);
   EXPECT_FALSE(IsChannelEstablished());
   EstablishAndWait();
   EXPECT_TRUE(IsChannelEstablished());
 }
 
 }  // namespace content