Mojoify time zone update IPC from browser to renderer

content/browser/time_zone_monitor.h

Index: content/browser/time_zone_monitor.h
diff --git a/content/browser/time_zone_monitor.h b/content/browser/time_zone_monitor.h
index 95f70a39317cda74739e85d439a1c5a207f97192..aa3ac9b3007a06f4884e9d881655e4b73d79caaf 100644
--- a/content/browser/time_zone_monitor.h
+++ b/content/browser/time_zone_monitor.h
@@ -8,6 +8,8 @@
 #include <memory>
 
 #include "base/macros.h"
+#include "device/time_zone_monitor/public/interfaces/time_zone_monitor.mojom.h"
+#include "mojo/public/cpp/bindings/binding_set.h"
 
 namespace content {
 
@@ -28,22 +30,31 @@ namespace content {
 //    localtime in renderer processes with custom code that calls
 //    localtime in the browser process via Chrome IPC.
 
-class TimeZoneMonitor {
+class TimeZoneMonitor : public device::mojom::TimeZoneMonitor {
  public:
   // Returns a new TimeZoneMonitor object (likely a subclass) specific to the
   // platform.
   static std::unique_ptr<TimeZoneMonitor> Create();
 
-  virtual ~TimeZoneMonitor();
+  ~TimeZoneMonitor() override;
+
+  void Bind(device::mojom::TimeZoneMonitorRequest request);
 
  protected:
   TimeZoneMonitor();
 
-  // Loop over all renderers and notify them that the system time zone may
-  // have changed.
-  void NotifyRenderers();
+  // Notify all callbacks that the system time zone may have changed.
+  void NotifyClients();
 
  private:
+  // device::mojom::device::mojom::TimeZoneMonitor:
+  void QueryNextTimeZoneChange(
+      const device::mojom::TimeZoneMonitor::QueryNextTimeZoneChangeCallback&
+          callback) override;
+
+  mojo::BindingSet<device::mojom::TimeZoneMonitor> bindings_;
+  std::vector<device::mojom::TimeZoneMonitor::QueryNextTimeZoneChangeCallback>
+      on_time_zone_change_tasks_;
   DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitor);
 };