In chromedriver, add /log url

chrome/test/webdriver/session_manager.cc

Index: chrome/test/webdriver/session_manager.cc
diff --git a/chrome/test/webdriver/session_manager.cc b/chrome/test/webdriver/session_manager.cc
index 93097ee6c68c8cdb360269599bfbf06804904955..40794437d17a451943fca1a7780f4b55dd882c84 100644
--- a/chrome/test/webdriver/session_manager.cc
+++ b/chrome/test/webdriver/session_manager.cc
@@ -45,10 +45,8 @@ bool SessionManager::Remove(const std::string& id) {
   Session* session;
   base::AutoLock lock(map_lock_);
   it = map_.find(id);
-  if (it == map_.end()) {
-    VLOG(1) << "No such session with ID " << id;
+  if (it == map_.end())
     return false;
-  }
   session = it->second;
   map_.erase(it);
   return true;
@@ -58,10 +56,8 @@ Session* SessionManager::GetSession(const std::string& id) const {
   std::map<std::string, Session*>::const_iterator it;
   base::AutoLock lock(map_lock_);
   it = map_.find(id);
-  if (it == map_.end()) {
-    VLOG(1) << "No such session with ID " << id;
+  if (it == map_.end())
     return NULL;
-  }
   return it->second;
 }