cros: Open play store app for md-settings stylus "Find more apps" link

chrome/browser/ui/webui/settings/chromeos/device_stylus_handler.cc

Index: chrome/browser/ui/webui/settings/chromeos/device_stylus_handler.cc
diff --git a/chrome/browser/ui/webui/settings/chromeos/device_stylus_handler.cc b/chrome/browser/ui/webui/settings/chromeos/device_stylus_handler.cc
index 0a7d66213e402929985b2b223a2ac10deeecf2e0..60ccced9108b21a614e2fad40cc9b3e2ad67e1b3 100644
--- a/chrome/browser/ui/webui/settings/chromeos/device_stylus_handler.cc
+++ b/chrome/browser/ui/webui/settings/chromeos/device_stylus_handler.cc
@@ -6,7 +6,9 @@
 
 #include "ash/common/system/chromeos/palette/palette_utils.h"
 #include "base/bind.h"
+#include "chrome/browser/chromeos/arc/arc_util.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/app_list/arc/arc_app_utils.h"
 #include "ui/events/devices/input_device_manager.h"
 
 namespace chromeos {
@@ -44,6 +46,9 @@ void StylusHandler::RegisterMessages() {
       "setPreferredNoteTakingApp",
       base::Bind(&StylusHandler::SetPreferredNoteTakingApp,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "showPlayStoreApps",
+      base::Bind(&StylusHandler::ShowPlayStoreApps, base::Unretained(this)));
 }
 
 void StylusHandler::OnAvailableNoteTakingAppsUpdated() {
@@ -116,5 +121,17 @@ void StylusHandler::SendHasStylus() {
       base::FundamentalValue(ash::palette_utils::HasStylusInput()));
 }
 
+void StylusHandler::ShowPlayStoreApps(const base::ListValue* args) {
+  std::string apps_url;
+  args->GetString(0, &apps_url);
+  Profile* profile = Profile::FromWebUI(web_ui());
+  if (!arc::IsArcAllowedForProfile(profile)) {
+    VLOG(1) << "ARC is not enabled for this profile";
+    return;
+  }
+
+  arc::LaunchPlayStoreWithUrl(apps_url);
+}
+
 }  // namespace settings
 }  // namespace chromeos