Remove lots of old blur plumbing.

components/test_runner/web_test_proxy.h

Index: components/test_runner/web_test_proxy.h
diff --git a/components/test_runner/web_test_proxy.h b/components/test_runner/web_test_proxy.h
index f60a9adef6b794f2fe2a3c42510adf2300764fbc..76facae751e5e49191c788c71d9a76275e5f0fb2 100644
--- a/components/test_runner/web_test_proxy.h
+++ b/components/test_runner/web_test_proxy.h
@@ -174,7 +174,6 @@ class TEST_RUNNER_EXPORT WebTestProxyBase {
   void RequestPointerUnlock();
   bool IsPointerLocked();
   void DidFocus();
-  void DidBlur();
   void SetToolTipText(const blink::WebString& text,
                       blink::WebTextDirection direction);
   void DidAddMessageToConsole(const blink::WebConsoleMessage& text,
@@ -358,10 +357,6 @@ class WebTestProxy : public Base, public WebTestProxyBase {
     WebTestProxyBase::DidFocus();
     Base::didFocus();
   }
-  virtual void didBlur() {
-    WebTestProxyBase::DidBlur();
-    Base::didBlur();
-  }
   virtual void setToolTipText(const blink::WebString& text,
                               blink::WebTextDirection hint) {
     WebTestProxyBase::SetToolTipText(text, hint);