Unify IMEDriver and IMEServer.

chrome/browser/ui/views/ime_driver/ime_driver_mus.h

Index: chrome/browser/ui/views/ime_driver/ime_driver_mus.h
diff --git a/chrome/browser/ui/views/ime_driver/ime_driver_mus.h b/chrome/browser/ui/views/ime_driver/ime_driver_mus.h
index 315c7b9c11e70efe9f682c53e32e3d1315fd53b8..50d89c1a9b1575a896d7415081b1e5b8d2d66b6d 100644
--- a/chrome/browser/ui/views/ime_driver/ime_driver_mus.h
+++ b/chrome/browser/ui/views/ime_driver/ime_driver_mus.h
@@ -10,7 +10,6 @@
 #include <map>
 #include <memory>
 
-#include "mojo/public/cpp/bindings/binding.h"
 #include "services/ui/public/interfaces/ime/ime.mojom.h"
 
 class IMEDriver : public ui::mojom::IMEDriver {
@@ -23,12 +22,7 @@ class IMEDriver : public ui::mojom::IMEDriver {
 
  private:
   // ui::mojom::IMEDriver:
-  void StartSession(int32_t session_id,
-                    ui::mojom::StartSessionDetailsPtr details) override;
-  void CancelSession(int32_t session_id) override;
-
-  std::map<int32_t, std::unique_ptr<mojo::Binding<ui::mojom::InputMethod>>>
-      input_method_bindings_;
+  void StartSession(ui::mojom::StartSessionDetailsPtr details) override;
 
   DISALLOW_COPY_AND_ASSIGN(IMEDriver);
 };