AppShell: Ignore channel requirements of extension API features

extensions/shell/browser/shell_extensions_browser_client.cc

Index: extensions/shell/browser/shell_extensions_browser_client.cc
diff --git a/extensions/shell/browser/shell_extensions_browser_client.cc b/extensions/shell/browser/shell_extensions_browser_client.cc
index 36fa3e3e48acb6998d9fb7f22fbdbe8869fe50c9..1244f4abf6cc692ed67e44186475e21c8b0f94d0 100644
--- a/extensions/shell/browser/shell_extensions_browser_client.cc
+++ b/extensions/shell/browser/shell_extensions_browser_client.cc
@@ -8,6 +8,7 @@
 
 #include "base/memory/ptr_util.h"
 #include "build/build_config.h"
+#include "components/version_info/version_info.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_frame_host.h"
@@ -20,6 +21,7 @@
 #include "extensions/browser/null_app_sorting.h"
 #include "extensions/browser/updater/null_extension_cache.h"
 #include "extensions/browser/url_request_util.h"
+#include "extensions/common/features/feature_channel.h"
 #include "extensions/shell/browser/api/generated_api_registration.h"
 #include "extensions/shell/browser/delegates/shell_kiosk_delegate.h"
 #include "extensions/shell/browser/shell_extension_host_delegate.h"
@@ -45,6 +47,9 @@ ShellExtensionsBrowserClient::ShellExtensionsBrowserClient(
       pref_service_(pref_service),
       api_client_(new ShellExtensionsAPIClient),
       extension_cache_(new NullExtensionCache()) {
+  // app_shell does not have a concept of channel yet, so leave UNKNOWN to
+  // enable all channel-dependent extension APIs.
+  SetCurrentChannel(version_info::Channel::UNKNOWN);
 }
 
 ShellExtensionsBrowserClient::~ShellExtensionsBrowserClient() {