This patch fixes Airbag issue #44.

Summary of this patch:
* It adds a new wstring* parameter to the end of both
SendCrashReport() and HTTPUpload::SendRequest(), which can be NULL.
* If the request isn't successful, the result parameter isn't touched.
* It adds HTTPUpload::UTF8ToWide() to allow the response to be
returned as a wstring,
* It changes the return value of SendRequest (and by extension,
SendCrashReport) so that if the size of the response body isn't
exactly the same as the value given in the Content-Length header, the
return value is false (in addition to the previous semantics).
* It also updates symupload.cc to account for the new parameter in
SendRequest().



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@81 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/tools/windows/symupload/symupload.cc

@@ -182,7 +182,7 @@ int wmain(int argc, wchar_t *argv[]) {
   }
 
   bool success = HTTPUpload::SendRequest(url, parameters,
-                                         symbol_file, L"symbol_file");
+                                         symbol_file, L"symbol_file", NULL);
   _wunlink(symbol_file.c_str());
 
   if (!success) {