Mojo C++ bindings: remove unnecessary getters/params of AssociatedGroup.

mojo/public/cpp/bindings/lib/binding_state.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_BINDING_STATE_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_BINDING_STATE_H_
 
 #include <memory>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/single_thread_task_runner.h"
-#include "mojo/public/cpp/bindings/associated_group.h"
 #include "mojo/public/cpp/bindings/bindings_export.h"
 #include "mojo/public/cpp/bindings/connection_error_callback.h"
 #include "mojo/public/cpp/bindings/filter_chain.h"
 #include "mojo/public/cpp/bindings/interface_endpoint_client.h"
 #include "mojo/public/cpp/bindings/interface_id.h"
 #include "mojo/public/cpp/bindings/interface_ptr.h"
 #include "mojo/public/cpp/bindings/interface_ptr_info.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "mojo/public/cpp/bindings/lib/multiplex_router.h"
 #include "mojo/public/cpp/bindings/message_header_validator.h"
@@ skipping 32 matching lines @@
     endpoint_client_->set_connection_error_with_reason_handler(error_handler);
   }
 
   bool is_bound() const { return !!router_; }
 
   MessagePipeHandle handle() const {
     DCHECK(is_bound());
     return router_->handle();
   }
 
-  AssociatedGroup* associated_group() {
-    return endpoint_client_ ? endpoint_client_->associated_group() : nullptr;
-  }
-
   void FlushForTesting();
 
   void EnableTestingMode();
 
  protected:
   void BindInternal(ScopedMessagePipeHandle handle,
                     scoped_refptr<base::SingleThreadTaskRunner> runner,
                     const char* interface_name,
                     std::unique_ptr<MessageReceiver> request_validator,
                     bool passes_associated_kinds,
@@ skipping 38 matching lines @@
  private:
   typename Interface::template Stub_<ImplRefTraits> stub_;
 
   DISALLOW_COPY_AND_ASSIGN(BindingState);
 };
 
 }  // namesapce internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_BINDING_STATE_H_