Enable the WebUSB Origin Trial.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 052e416edc16625d2124eea434a349cd12d68c35..0e2ea64140eb5d5b71067c59ff6ceee1beea2bc5 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -2896,12 +2896,7 @@ void ChromeContentBrowserClient::ExposeInterfacesToMediaService(
 void ChromeContentBrowserClient::RegisterRenderFrameMojoInterfaces(
     shell::InterfaceRegistry* registry,
     content::RenderFrameHost* render_frame_host) {
-  // WebUSB is an experimental web API. It will only work if the experiment
-  // is enabled and WebUSB feature is enabled. It should also not be available
-  // to apps and extensions.
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableExperimentalWebPlatformFeatures) &&
-      base::FeatureList::IsEnabled(features::kWebUsb)
+  if (base::FeatureList::IsEnabled(features::kWebUsb)
 #if defined(ENABLE_EXTENSIONS)
       &&
       !render_frame_host->GetSiteInstance()->GetSiteURL().SchemeIs(