Revert "Move WebSocketHandleImpl into Blink"

third_party/WebKit/public/platform/Platform.h

Index: third_party/WebKit/public/platform/Platform.h
diff --git a/third_party/WebKit/public/platform/Platform.h b/third_party/WebKit/public/platform/Platform.h
index 363f6b7a89ad4b300d7154e49ab2cf7c5169c38f..2ce65ea0583f69703e9ce0ad20ed4e688ee6b244 100644
--- a/third_party/WebKit/public/platform/Platform.h
+++ b/third_party/WebKit/public/platform/Platform.h
@@ -107,6 +107,7 @@ class WebSandboxSupport;
 class WebScrollbarBehavior;
 class WebSecurityOrigin;
 class WebServiceWorkerCacheStorage;
+class WebSocketHandle;
 class WebSpeechSynthesizer;
 class WebSpeechSynthesizerClient;
 class WebStorageNamespace;
@@ -303,6 +304,9 @@ public:
     // May return null.
     virtual WebPrescientNetworking* prescientNetworking() { return nullptr; }
 
+    // Returns a new WebSocketHandle instance.
+    virtual WebSocketHandle* createWebSocketHandle() { return nullptr; }
+
     // Returns the User-Agent string.
     virtual WebString userAgent() { return WebString(); }