Rename variables named web_socket*

and "web_socket_scope". Since WebSocket is one word, these should be
"websocket" and "websocket_scope". Fix them.

blink: :DOMWebSocket and its tests contained variables name "web_socket"
Change-Id: I0d75c7a45a2a2dc85253be1387a80af78eda2c3a
Reviewed-on: https://chromium-review.googlesource.com/1098747Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Adam Rice <ricea@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567247}

third_party/blink/renderer/modules/websockets/dom_websocket.cc

@@ -263,25 +263,25 @@ DOMWebSocket* DOMWebSocket::Create(ExecutionContext* context,
     return nullptr;
   }
 
-  DOMWebSocket* web_socket = new DOMWebSocket(context);
-  web_socket->PauseIfNeeded();
+  DOMWebSocket* websocket = new DOMWebSocket(context);
+  websocket->PauseIfNeeded();
 
   if (protocols.IsNull()) {
     Vector<String> protocols_vector;
-    web_socket->Connect(url, protocols_vector, exception_state);
+    websocket->Connect(url, protocols_vector, exception_state);
   } else if (protocols.IsString()) {
     Vector<String> protocols_vector;
     protocols_vector.push_back(protocols.GetAsString());
-    web_socket->Connect(url, protocols_vector, exception_state);
+    websocket->Connect(url, protocols_vector, exception_state);
   } else {
     DCHECK(protocols.IsStringSequence());
-    web_socket->Connect(url, protocols.GetAsStringSequence(), exception_state);
+    websocket->Connect(url, protocols.GetAsStringSequence(), exception_state);
   }
 
   if (exception_state.HadException())
     return nullptr;
 
-  return web_socket;
+  return websocket;
 }
 
 void DOMWebSocket::Connect(const String& url,