remove dead code from devtools worker management

content/browser/devtools/worker_devtools_manager.cc

Index: content/browser/devtools/worker_devtools_manager.cc
diff --git a/content/browser/devtools/worker_devtools_manager.cc b/content/browser/devtools/worker_devtools_manager.cc
index f0608815f3336c782f1100577a01c16ff2298d07..00735f34c2ebfe69744a2fb44fb261bd4b230872 100644
--- a/content/browser/devtools/worker_devtools_manager.cc
+++ b/content/browser/devtools/worker_devtools_manager.cc
@@ -32,16 +32,6 @@ scoped_refptr<DevToolsAgentHost> DevToolsAgentHost::GetForWorker(
       worker_route_id);
 }
 
-// Called on the UI thread.
-// static
-bool DevToolsAgentHost::HasForWorker(
-    int worker_process_id,
-    int worker_route_id) {
-  return WorkerDevToolsManager::HasDevToolsAgentHostForWorker(
-      worker_process_id,
-      worker_route_id);
-}
-
 namespace {
 
 typedef std::map<WorkerDevToolsManager::WorkerId,
@@ -232,14 +222,6 @@ DevToolsAgentHost* WorkerDevToolsManager::GetDevToolsAgentHostForWorker(
   return it->second;
 }
 
-// static
-bool WorkerDevToolsManager::HasDevToolsAgentHostForWorker(
-    int worker_process_id,
-    int worker_route_id) {
-  WorkerId id(worker_process_id, worker_route_id);
-  return g_agent_map.Get().find(id) != g_agent_map.Get().end();
-}
-
 WorkerDevToolsManager::WorkerDevToolsManager() {
 }