ipc: Convert int types from basictypes.h to the ones from stdint.h

ipc/ipc_channel_proxy.h

 // Copyright (c) 2012 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 IPC_IPC_CHANNEL_PROXY_H_
 #define IPC_IPC_CHANNEL_PROXY_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
@@ skipping 177 matching lines @@
 
     // Indicates if the underlying channel's Send is thread-safe.
     bool IsChannelSendThreadSafe() const;
 
    protected:
     friend class base::RefCountedThreadSafe<Context>;
     ~Context() override;
 
     // IPC::Listener methods:
     bool OnMessageReceived(const Message& message) override;
-    void OnChannelConnected(int32 peer_pid) override;
+    void OnChannelConnected(int32_t peer_pid) override;
     void OnChannelError() override;
 
     // Like OnMessageReceived but doesn't try the filters.
     bool OnMessageReceivedNoFilter(const Message& message);
 
     // Gives the filters a chance at processing |message|.
     // Returns true if the message was processed, false otherwise.
     bool TryFilters(const Message& message);
 
     // Like Open and Close, but called on the IPC thread.
@@ skipping 97 matching lines @@
   bool did_init_;
 
 #if defined(ENABLE_IPC_FUZZER)
   OutgoingMessageFilter* outgoing_message_filter_;
 #endif
 };
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_CHANNEL_PROXY_H_