Make the copy of GURL in src/url buildable as a component build. (try 2)

url/url_util.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_UTIL_H_
 #define URL_URL_UTIL_H_
 
 #include <string>
 
 #include "base/string16.h"
 #include "url/url_canon.h"
+#include "url/url_export.h"
 #include "url/url_parse.h"
 
 namespace url_util {
 
 // Init ------------------------------------------------------------------------
 
 // Initialization is NOT required, it will be implicitly initialized when first
 // used. However, this implicit initialization is NOT threadsafe. If you are
 // using this library in a threaded environment and don't have a consistent
 // "first call" (an example might be calling "AddStandardScheme" with your
 // special application-specific schemes) then you will want to call initialize
 // before spawning any threads.
 //
 // It is OK to call this function more than once, subsequent calls will simply
 // "noop", unless Shutdown() was called in the mean time. This will also be a
 // "noop" if other calls to the library have forced an initialization
 // beforehand.
-void Initialize();
+URL_EXPORT void Initialize();
 
 // Cleanup is not required, except some strings may leak. For most user
 // applications, this is fine. If you're using it in a library that may get
 // loaded and unloaded, you'll want to unload to properly clean up your
 // library.
-void Shutdown();
+URL_EXPORT void Shutdown();
 
 // Schemes --------------------------------------------------------------------
 
 // Adds an application-defined scheme to the internal list of "standard" URL
 // schemes. This function is not threadsafe and can not be called concurrently
 // with any other url_util function. It will assert if the list of standard
 // schemes has been locked (see LockStandardSchemes).
-void AddStandardScheme(const char* new_scheme);
+URL_EXPORT void AddStandardScheme(const char* new_scheme);
 
 // Sets a flag to prevent future calls to AddStandardScheme from succeeding.
 //
 // This is designed to help prevent errors for multithreaded applications.
 // Normal usage would be to call AddStandardScheme for your custom schemes at
 // the beginning of program initialization, and then LockStandardSchemes. This
 // prevents future callers from mistakenly calling AddStandardScheme when the
 // program is running with multiple threads, where such usage would be
 // dangerous.
 //
 // We could have had AddStandardScheme use a lock instead, but that would add
 // some platform-specific dependencies we don't otherwise have now, and is
 // overkill considering the normal usage is so simple.
-void LockStandardSchemes();
+URL_EXPORT void LockStandardSchemes();
 
 // Locates the scheme in the given string and places it into |found_scheme|,
 // which may be NULL to indicate the caller does not care about the range.
 //
 // Returns whether the given |compare| scheme matches the scheme found in the
 // input (if any). The |compare| scheme must be a valid canonical scheme or
 // the result of the comparison is undefined.
-bool FindAndCompareScheme(const char* str,
-                          int str_len,
-                          const char* compare,
-                          url_parse::Component* found_scheme);
-bool FindAndCompareScheme(const char16* str,
-                          int str_len,
-                          const char* compare,
-                          url_parse::Component* found_scheme);
+URL_EXPORT bool FindAndCompareScheme(const char* str,
+                                     int str_len,
+                                     const char* compare,
+                                     url_parse::Component* found_scheme);
+URL_EXPORT bool FindAndCompareScheme(const char16* str,
+                                     int str_len,
+                                     const char* compare,
+                                     url_parse::Component* found_scheme);
 inline bool FindAndCompareScheme(const std::string& str,
                                  const char* compare,
                                  url_parse::Component* found_scheme) {
   return FindAndCompareScheme(str.data(), static_cast<int>(str.size()),
                               compare, found_scheme);
 }
 inline bool FindAndCompareScheme(const string16& str,
                                  const char* compare,
                                  url_parse::Component* found_scheme) {
   return FindAndCompareScheme(str.data(), static_cast<int>(str.size()),
                               compare, found_scheme);
 }
 
 // Returns true if the given string represents a standard URL. This means that
 // either the scheme is in the list of known standard schemes.
-bool IsStandard(const char* spec,
-                const url_parse::Component& scheme);
-bool IsStandard(const char16* spec,
-                const url_parse::Component& scheme);
+URL_EXPORT bool IsStandard(const char* spec,
+                           const url_parse::Component& scheme);
+URL_EXPORT bool IsStandard(const char16* spec,
+                           const url_parse::Component& scheme);
 
 // TODO(brettw) remove this. This is a temporary compatibility hack to avoid
 // breaking the WebKit build when this version is synced via Chrome.
 inline bool IsStandard(const char* spec, int spec_len,
                        const url_parse::Component& scheme) {
   return IsStandard(spec, scheme);
 }
 
 // URL library wrappers -------------------------------------------------------
 
 // Parses the given spec according to the extracted scheme type. Normal users
 // should use the URL object, although this may be useful if performance is
 // critical and you don't want to do the heap allocation for the std::string.
 //
 // As with the url_canon::Canonicalize* functions, the charset converter can
 // be NULL to use UTF-8 (it will be faster in this case).
 //
 // Returns true if a valid URL was produced, false if not. On failure, the
 // output and parsed structures will still be filled and will be consistent,
 // but they will not represent a loadable URL.
-bool Canonicalize(const char* spec,
-                  int spec_len,
-                  url_canon::CharsetConverter* charset_converter,
-                  url_canon::CanonOutput* output,
-                  url_parse::Parsed* output_parsed);
-bool Canonicalize(const char16* spec,
-                  int spec_len,
-                  url_canon::CharsetConverter* charset_converter,
-                  url_canon::CanonOutput* output,
-                  url_parse::Parsed* output_parsed);
+URL_EXPORT bool Canonicalize(const char* spec,
+                             int spec_len,
+                             url_canon::CharsetConverter* charset_converter,
+                             url_canon::CanonOutput* output,
+                             url_parse::Parsed* output_parsed);
+URL_EXPORT bool Canonicalize(const char16* spec,
+                             int spec_len,
+                             url_canon::CharsetConverter* charset_converter,
+                             url_canon::CanonOutput* output,
+                             url_parse::Parsed* output_parsed);
 
 // Resolves a potentially relative URL relative to the given parsed base URL.
 // The base MUST be valid. The resulting canonical URL and parsed information
 // will be placed in to the given out variables.
 //
 // The relative need not be relative. If we discover that it's absolute, this
 // will produce a canonical version of that URL. See Canonicalize() for more
 // about the charset_converter.
 //
 // Returns true if the output is valid, false if the input could not produce
 // a valid URL.
-bool ResolveRelative(const char* base_spec,
-                     int base_spec_len,
-                     const url_parse::Parsed& base_parsed,
-                     const char* relative,
-                     int relative_length,
-                     url_canon::CharsetConverter* charset_converter,
-                     url_canon::CanonOutput* output,
-                     url_parse::Parsed* output_parsed);
-bool ResolveRelative(const char* base_spec,
-                     int base_spec_len,
-                     const url_parse::Parsed& base_parsed,
-                     const char16* relative,
-                     int relative_length,
-                     url_canon::CharsetConverter* charset_converter,
-                     url_canon::CanonOutput* output,
-                     url_parse::Parsed* output_parsed);
+URL_EXPORT bool ResolveRelative(const char* base_spec,
+                                int base_spec_len,
+                                const url_parse::Parsed& base_parsed,
+                                const char* relative,
+                                int relative_length,
+                                url_canon::CharsetConverter* charset_converter,
+                                url_canon::CanonOutput* output,
+                                url_parse::Parsed* output_parsed);
+URL_EXPORT bool ResolveRelative(const char* base_spec,
+                                int base_spec_len,
+                                const url_parse::Parsed& base_parsed,
+                                const char16* relative,
+                                int relative_length,
+                                url_canon::CharsetConverter* charset_converter,
+                                url_canon::CanonOutput* output,
+                                url_parse::Parsed* output_parsed);
 
 // Replaces components in the given VALID input url. The new canonical URL info
 // is written to output and out_parsed.
 //
 // Returns true if the resulting URL is valid.
-bool ReplaceComponents(
+URL_EXPORT bool ReplaceComponents(
     const char* spec,
     int spec_len,
     const url_parse::Parsed& parsed,
     const url_canon::Replacements<char>& replacements,
     url_canon::CharsetConverter* charset_converter,
     url_canon::CanonOutput* output,
     url_parse::Parsed* out_parsed);
-bool ReplaceComponents(
+URL_EXPORT bool ReplaceComponents(
     const char* spec,
     int spec_len,
     const url_parse::Parsed& parsed,
     const url_canon::Replacements<char16>& replacements,
     url_canon::CharsetConverter* charset_converter,
     url_canon::CanonOutput* output,
     url_parse::Parsed* out_parsed);
 
 // String helper functions ----------------------------------------------------
 
 // Compare the lower-case form of the given string against the given ASCII
 // string.  This is useful for doing checking if an input string matches some
 // token, and it is optimized to avoid intermediate string copies.
 //
 // The versions of this function that don't take a b_end assume that the b
 // string is NULL terminated.
-bool LowerCaseEqualsASCII(const char* a_begin,
-                          const char* a_end,
-                          const char* b);
-bool LowerCaseEqualsASCII(const char* a_begin,
-                          const char* a_end,
-                          const char* b_begin,
-                          const char* b_end);
-bool LowerCaseEqualsASCII(const char16* a_begin,
-                          const char16* a_end,
-                          const char* b);
+URL_EXPORT bool LowerCaseEqualsASCII(const char* a_begin,
+                                     const char* a_end,
+                                     const char* b);
+URL_EXPORT bool LowerCaseEqualsASCII(const char* a_begin,
+                                     const char* a_end,
+                                     const char* b_begin,
+                                     const char* b_end);
+URL_EXPORT bool LowerCaseEqualsASCII(const char16* a_begin,
+                                     const char16* a_end,
+                                     const char* b);
 
 // Unescapes the given string using URL escaping rules.
-void DecodeURLEscapeSequences(const char* input, int length,
-                              url_canon::CanonOutputW* output);
+URL_EXPORT void DecodeURLEscapeSequences(const char* input, int length,
+                                         url_canon::CanonOutputW* output);
 
 // Escapes the given string as defined by the JS method encodeURIComponent.  See
 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURIComponent
-void EncodeURIComponent(const char* input, int length,
-                        url_canon::CanonOutput* output);
+URL_EXPORT void EncodeURIComponent(const char* input, int length,
+                                   url_canon::CanonOutput* output);
 
 
 }  // namespace url_util
 
 #endif  // URL_URL_UTIL_H_