Handle everything not in [200, 300) as error. For example HockeyApp responds with 202.

util/net/http_transport_libcurl.cc

@@ -338,7 +338,7 @@ bool HTTPTransportLibcurl::ExecuteSynchronously(std::string* response_body) {
     return false;
   }
 
-  if (status != 200) {
+  if (status < 200 || status >= 300) {
     LOG(ERROR) << base::StringPrintf("HTTP status %ld", status);
     return false;
   }

util/net/http_transport_mac.mm

@@ -293,7 +293,7 @@ bool HTTPTransportMac::ExecuteSynchronously(std::string* response_body) {
       return false;
     }
     NSInteger http_status = [http_response statusCode];
-    if (http_status != 200) {
+    if (http_status < 200 || http_status >= 300) {
       LOG(ERROR) << base::StringPrintf("HTTP status %ld",
                                        implicit_cast<long>(http_status));
       return false;

util/net/http_transport_win.cc

@@ -369,7 +369,7 @@ bool HTTPTransportWin::ExecuteSynchronously(std::string* response_body) {
     return false;
   }
 
-  if (status_code != 200) {
+  if (status_code < 200 || status_code >= 300) {
     LOG(ERROR) << base::StringPrintf("HTTP status %d", status_code);
     return false;
   }