Add enable vulkan option on chrome://flags page

Bug: None
Change-Id: Ib16fde51ee8d23ca6003df99fd998cf24a02a7f9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2134620Reviewed-by: Vasiliy Telezhnikov <vasilyt@chromium.org>
Commit-Queue: Peng Huang <penghuang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#756276}

chrome/browser/about_flags.cc

@@ -2272,8 +2272,8 @@ const FeatureEntry kFeatureEntries[] = {
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableZeroCopy,
                                switches::kDisableZeroCopy)},
     {"enable-vulkan", flag_descriptions::kEnableVulkanName,
-     flag_descriptions::kEnableVulkanDescription, kOsLinux | kOsAndroid,
-     FEATURE_VALUE_TYPE(features::kVulkan)},
+     flag_descriptions::kEnableVulkanDescription,
+     kOsWin | kOsLinux | kOsAndroid, FEATURE_VALUE_TYPE(features::kVulkan)},
 #if defined(OS_MACOSX)
     {"disable-hosted-app-shim-creation",
      flag_descriptions::kHostedAppShimCreationName,