url: Changes to make it build standalone.

url/url_canon_stdstring.h

Index: url/url_canon_stdstring.h
diff --git a/url/url_canon_stdstring.h b/url/url_canon_stdstring.h
index 21272e035bac953e9073d2c07ba45e91f2071197..cb51f1dccb00cbb58c08c583b278e1caddff8892 100644
--- a/url/url_canon_stdstring.h
+++ b/url/url_canon_stdstring.h
@@ -31,11 +31,14 @@
 // strings. Because the canonicalizer tries not to be dependent on the STL,
 // we have segregated it here.
 
-#ifndef GOOGLEURL_SRC_URL_CANON_STDSTRING_H__
-#define GOOGLEURL_SRC_URL_CANON_STDSTRING_H__
+#ifndef URL_URL_CANON_STDSTRING_H_
+#define URL_URL_CANON_STDSTRING_H_
 
 #include <string>
-#include "googleurl/src/url_canon.h"
+
+#include "base/compiler_specific.h"
+#include "url/url_canon.h"
+#include "url/url_common.h"
 
 namespace url_canon {
 
@@ -55,7 +58,7 @@ namespace url_canon {
 //
 // Therefore, the user should call Complete() before using the string that
 // this class wrote into.
-class StdStringCanonOutput : public CanonOutput {
+class GURL_API StdStringCanonOutput : public CanonOutput {
  public:
   StdStringCanonOutput(std::string* str)
       : CanonOutput(),
@@ -75,11 +78,7 @@ class StdStringCanonOutput : public CanonOutput {
     buffer_len_ = cur_len_;
   }
 
-  virtual void Resize(int sz) {
-    str_->resize(sz);
-    buffer_ = str_->empty() ? NULL : &(*str_)[0];
-    buffer_len_ = sz;
-  }
+  virtual void Resize(int sz) OVERRIDE;
 
  protected:
   std::string* str_;
@@ -130,5 +129,4 @@ class StdStringReplacements :
 
 }  // namespace url_canon
 
-#endif  // GOOGLEURL_SRC_URL_CANON_STDSTRING_H__
-
+#endif  // URL_URL_CANON_STDSTRING_H_