The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b9adeda820d9105c4a8f54bd976327862421a492

commit b9adeda820d9105c4a8f54bd976327862421a492
Author: Chris Blume <cblume@chromium.org>
Date: Fri Jun 08 00:23:53 2018

Use function pointers in Vulkan

Currently, we statically link to the Vulkan library. We want to
dynamically link it and not require a developer to have the Vulkan SDK
installed.

This requires using function pointers instead of directly calling the
library's functions.

This CL adds function pointers, dynamically links to the Vulkan library,
and updates all existing function calls to function pointer calls.

BUG= 848104 

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: I68a5030b5f8bfe6a04b1e60c2fbdacd69dcd3ef3
Reviewed-on: https://chromium-review.googlesource.com/1080237
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Commit-Queue: Chris Blume <cblume@chromium.org>
Cr-Commit-Position: refs/heads/master@{#565482}
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/base/threading/thread_restrictions.h
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/components/viz/common/gpu/vulkan_in_process_context_provider.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/content/browser/compositor/gpu_process_transport_factory.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/BUILD.gn
[add] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/generate_bindings.py
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_command_buffer.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_command_pool.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_descriptor_layout.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_descriptor_pool.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_descriptor_set.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_device_queue.cc
[add] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_function_pointers.cc
[add] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_function_pointers.h
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_image_view.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_implementation_android.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_instance.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_render_pass.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_sampler.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_shader_module.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_surface.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/vulkan_swap_chain.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/gpu/vulkan/x/vulkan_implementation_x11.cc
[modify] https://crrev.com/b9adeda820d9105c4a8f54bd976327862421a492/third_party/vulkan/BUILD.gn