base::Bind: Convert most of net/http.

net/http/http_cache_transaction.h

Index: net/http/http_cache_transaction.h
diff --git a/net/http/http_cache_transaction.h b/net/http/http_cache_transaction.h
index f60a445b35840f1e6d53136dc40728fd9e52269d..7629c0b7a399c23d634befb4e26b084848a137f1 100644
--- a/net/http/http_cache_transaction.h
+++ b/net/http/http_cache_transaction.h
@@ -93,23 +93,24 @@ class HttpCache::Transaction : public HttpTransaction {
   // to the cache entry.
   LoadState GetWriterLoadState() const;
 
-  OldCompletionCallback* io_callback() { return &io_callback_; }
+  const CompletionCallback& io_callback() { return io_callback_; }
 
   const BoundNetLog& net_log() const;
 
   // HttpTransaction methods:
-  virtual int Start(const HttpRequestInfo*, OldCompletionCallback*,
+  virtual int Start(const HttpRequestInfo*, const CompletionCallback&,
                     const BoundNetLog&) OVERRIDE;
   virtual int RestartIgnoringLastError(
-      OldCompletionCallback* callback) OVERRIDE;
-  virtual int RestartWithCertificate(X509Certificate* client_cert,
-                                     OldCompletionCallback* callback) OVERRIDE;
+      const CompletionCallback& callback) OVERRIDE;
+  virtual int RestartWithCertificate(
+      X509Certificate* client_cert,
+      const CompletionCallback& callback) OVERRIDE;
   virtual int RestartWithAuth(const AuthCredentials& credentials,
-                              OldCompletionCallback* callback) OVERRIDE;
+                              const CompletionCallback& callback) OVERRIDE;
   virtual bool IsReadyToRestartForAuth() OVERRIDE;
   virtual int Read(IOBuffer* buf,
                    int buf_len,
-                   OldCompletionCallback* callback) OVERRIDE;
+                   const CompletionCallback& callback) OVERRIDE;
   virtual void StopCaching() OVERRIDE;
   virtual void DoneReading() OVERRIDE;
   virtual const HttpResponseInfo* GetResponseInfo() const OVERRIDE;
@@ -338,7 +339,7 @@ class HttpCache::Transaction : public HttpTransaction {
   base::TimeTicks entry_lock_waiting_since_;
   HttpCache::ActiveEntry* new_entry_;
   scoped_ptr<HttpTransaction> network_trans_;
-  OldCompletionCallback* callback_;  // Consumer's callback.
+  CompletionCallback callback_;  // Consumer's callback.
   HttpResponseInfo response_;
   HttpResponseInfo auth_response_;
   const HttpResponseInfo* new_response_;
@@ -360,7 +361,7 @@ class HttpCache::Transaction : public HttpTransaction {
   int write_len_;
   scoped_ptr<PartialData> partial_;  // We are dealing with range requests.
   uint64 final_upload_progress_;
-  OldCompletionCallbackImpl<Transaction> io_callback_;
+  CompletionCallback io_callback_;
   scoped_refptr<CancelableOldCompletionCallback<Transaction> > cache_callback_;
   scoped_refptr<CancelableOldCompletionCallback<Transaction> >
       write_headers_callback_;