Unify shared and service workers in chrome://inspect, remove service workers iframe.

content/browser/devtools/embedded_worker_devtools_agent_host.cc

Index: content/browser/devtools/embedded_worker_devtools_agent_host.cc
diff --git a/content/browser/devtools/embedded_worker_devtools_agent_host.cc b/content/browser/devtools/embedded_worker_devtools_agent_host.cc
index 3e83b060a7b42c0192b9a08488f5f7ac49245bbf..da047265f657ae5c7d8331aeaf4a8d92adb32d1a 100644
--- a/content/browser/devtools/embedded_worker_devtools_agent_host.cc
+++ b/content/browser/devtools/embedded_worker_devtools_agent_host.cc
@@ -68,7 +68,13 @@ DevToolsAgentHost::Type EmbeddedWorkerDevToolsAgentHost::GetType() {
 }
 
 std::string EmbeddedWorkerDevToolsAgentHost::GetTitle() {
-  return shared_worker_ ? base::UTF16ToUTF8(shared_worker_->name()) : "";
+  if (shared_worker_ && shared_worker_->name().length())
+    return base::UTF16ToUTF8(shared_worker_->name());
+  if (RenderProcessHost* host = RenderProcessHost::FromID(worker_id_.first)) {
+    return base::StringPrintf("Worker pid:%d",
+                              base::GetProcId(host->GetHandle()));
+  }
+  return "";
 }
 
 GURL EmbeddedWorkerDevToolsAgentHost::GetURL() {