Deinline the implementation of StdStringCanonOutput.

url/url_canon_stdstring.h

 // Copyright 2013 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 URL_URL_CANON_STDSTRING_H_
 #define URL_URL_CANON_STDSTRING_H_
 
 // This header file defines a canonicalizer output method class for STL
 // strings. Because the canonicalizer tries not to be dependent on the STL,
 // we have segregated it here.
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "url/url_canon.h"
+#include "url/url_export.h"
 
 namespace url_canon {
 
 // Write into a std::string given in the constructor. This object does not own
 // the string itself, and the user must ensure that the string stays alive
 // throughout the lifetime of this object.
 //
 // The given string will be appended to; any existing data in the string will
 // be preserved. The caller should reserve() the amount of data in the string
 // they expect to be written. We will resize if necessary, but that's slow.
 //
 // Note that when canonicalization is complete, the string will likely have
 // unused space at the end because we make the string very big to start out
 // with (by |initial_size|). This ends up being important because resize
 // operations are slow, and because the base class needs to write directly
 // into the buffer.
 //
 // Therefore, the user should call Complete() before using the string that
 // this class wrote into.
-class StdStringCanonOutput : public CanonOutput {
+class URL_EXPORT StdStringCanonOutput : public CanonOutput {
  public:
-  StdStringCanonOutput(std::string* str)
-      : CanonOutput(),
-        str_(str) {
-    cur_len_ = static_cast<int>(str_->size());  // Append to existing data.
-    str_->resize(str_->capacity());
-    buffer_ = str_->empty() ? NULL : &(*str_)[0];
-    buffer_len_ = static_cast<int>(str_->size());
-  }
-  virtual ~StdStringCanonOutput() {
-    // Nothing to do, we don't own the string.
-  }
+  StdStringCanonOutput(std::string* str);
+  virtual ~StdStringCanonOutput();
 
   // Must be called after writing has completed but before the string is used.
-  void Complete() {
-    str_->resize(cur_len_);
-    buffer_len_ = cur_len_;
-  }
+  void Complete();
 
-  virtual void Resize(int sz) OVERRIDE {
-    str_->resize(sz);
-    buffer_ = str_->empty() ? NULL : &(*str_)[0];
-    buffer_len_ = sz;
-  }
+  virtual void Resize(int sz) OVERRIDE;
 
  protected:
   std::string* str_;
 };
 
 // An extension of the Replacements class that allows the setters to use
 // standard strings.
 //
 // The strings passed as arguments are not copied and must remain valid until
 // this class goes out of scope.
@@ skipping 31 matching lines @@
   }
   void SetRefStr(const STR& s) {
     this->SetRef(s.data(),
                  url_parse::Component(0, static_cast<int>(s.length())));
   }
 };
 
 }  // namespace url_canon
 
 #endif  // URL_URL_CANON_STDSTRING_H_