Revert 88492 - In chromedriver, add /log url to get the contents of the chromedriver log

chrome/test/webdriver/session_manager.cc

Index: chrome/test/webdriver/session_manager.cc
===================================================================
--- chrome/test/webdriver/session_manager.cc	(revision 88495)
+++ chrome/test/webdriver/session_manager.cc	(working copy)
@@ -45,8 +45,10 @@
   Session* session;
   base::AutoLock lock(map_lock_);
   it = map_.find(id);
-  if (it == map_.end())
+  if (it == map_.end()) {
+    VLOG(1) << "No such session with ID " << id;
     return false;
+  }
   session = it->second;
   map_.erase(it);
   return true;
@@ -56,8 +58,10 @@
   std::map<std::string, Session*>::const_iterator it;
   base::AutoLock lock(map_lock_);
   it = map_.find(id);
-  if (it == map_.end())
+  if (it == map_.end()) {
+    VLOG(1) << "No such session with ID " << id;
     return NULL;
+  }
   return it->second;
 }