Removed using statements from common.h

These statements pulled a bunch of symbols from the std namespace into
the global namespace. This commit removes all of them except for
std::string, which is a bit trickier to remove.

2 files changed, 3 insertions, 3 deletions

diff --git a/conformance/conformance_test.cc b/conformance/conformance_test.cc
index 98c2eae4..e4b046dc 100644
--- a/conformance/conformance_test.cc
+++ b/conformance/conformance_test.cc
@@ -754,7 +754,7 @@ void ConformanceTestSuite::TestValidDataForType(
 }
 
 void ConformanceTestSuite::SetFailureList(const string& filename,
-                                          const vector<string>& failure_list) {
+                                          const std::vector<string>& failure_list) {
   failure_list_filename_ = filename;
   expected_to_fail_.clear();
   std::copy(failure_list.begin(), failure_list.end(),
diff --git a/conformance/conformance_test_runner.cc b/conformance/conformance_test_runner.cc
index 7e91d388..09631f0c 100644
--- a/conformance/conformance_test_runner.cc
+++ b/conformance/conformance_test_runner.cc
@@ -264,7 +264,7 @@ void UsageError() {
   exit(1);
 }
 
-void ParseFailureList(const char *filename, vector<string>* failure_list) {
+void ParseFailureList(const char *filename, std::vector<string>* failure_list) {
   std::ifstream infile(filename);
 
   if (!infile.is_open()) {
@@ -291,7 +291,7 @@ int main(int argc, char *argv[]) {
   google::protobuf::ConformanceTestSuite suite;
 
   string failure_list_filename;
-  vector<string> failure_list;
+  std::vector<string> failure_list;
 
   for (int arg = 1; arg < argc; ++arg) {
     if (strcmp(argv[arg], "--failure_list") == 0) {