Added initial Vulkan build files as well as a basic implementation file.

content/gpu/gpu_main.cc

 // Copyright (c) 2012 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 <stddef.h>
 #include <stdlib.h>
 
 #include <utility>
 
 #include "base/lazy_instance.h"
@@ skipping 62 matching lines @@
 
 #if defined(OS_MACOSX)
 #include "base/message_loop/message_pump_mac.h"
 #include "content/common/sandbox_mac.h"
 #endif
 
 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
 #include "content/common/gpu/media/vaapi_wrapper.h"
 #endif
 
+#if defined(ENABLE_VULKAN)
+#include "gpu/vulkan/vulkan_surface.h"
+#endif
+
 #if defined(SANITIZER_COVERAGE)
 #include <sanitizer/common_interface_defs.h>
 #include <sanitizer/coverage_interface.h>
 #endif
 
 #if defined(CYGPROFILE_INSTRUMENTATION)
 const int kGpuTimeout = 30000;
 #else
 const int kGpuTimeout = 10000;
 #endif
@@ skipping 188 matching lines @@
       // is called from the sandbox warmup code before getting here.
       gl_already_initialized = true;
     }
 #endif
     if (command_line.HasSwitch(switches::kInProcessGPU)) {
       // With in-process GPU, GLSurface::InitializeOneOff() is called from
       // GpuChildThread before getting here.
       gl_already_initialized = true;
     }
 
+#if defined(ENABLE_VULKAN)
+    // Temporary Vulkan initialization injection.
+    gfx::VulkanSurface::InitializeOneOff();

[Nico, 2016/03/09 02:43:33]

do you need to call this both here and in the other file?

[David Yen, 2016/03/09 18:44:49]

I'm still figuring out the initialization path for these, should become more
clear as the actual surface is implemented. Right now I'm just injecting it here
to be sure Vulkan actually links/initializes properly.

+#endif
+
     // Load and initialize the GL implementation and locate the GL entry points.
     bool gl_initialized =
         gl_already_initialized
             ? gfx::GetGLImplementation() != gfx::kGLImplementationNone
             : gfx::GLSurface::InitializeOneOff();
     if (gl_initialized) {
       // We need to collect GL strings (VENDOR, RENDERER) for blacklisting
       // purposes. However, on Mac we don't actually use them. As documented in
       // crbug.com/222934, due to some driver issues, glGetString could take
       // multiple seconds to finish, which in turn cause the GPU process to
@@ skipping 292 matching lines @@
     return true;
   }
 
   return false;
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace.
 
 }  // namespace content