Remove lots of old blur plumbing.

components/test_runner/web_test_proxy.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/test_runner/web_test_proxy.h"
 
 #include <cctype>
 
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
@@ skipping 1000 matching lines @@
 }
 
 bool WebTestProxyBase::IsPointerLocked() {
   return test_interfaces_->GetTestRunner()->isPointerLocked();
 }
 
 void WebTestProxyBase::DidFocus() {
   delegate_->SetFocus(this, true);
 }
 
-void WebTestProxyBase::DidBlur() {
-  delegate_->SetFocus(this, false);
-}
-
 void WebTestProxyBase::SetToolTipText(const blink::WebString& text,
                                       blink::WebTextDirection direction) {
   test_interfaces_->GetTestRunner()->setToolTipText(text);
 }
 
 void WebTestProxyBase::DidOpenChooser() {
   chooser_count_++;
 }
 
 void WebTestProxyBase::DidCloseChooser() {
@@ skipping 382 matching lines @@
   // to cancel the input method's ongoing composition session.
   if (web_widget_)
     web_widget_->confirmComposition();
 }
 
 blink::WebString WebTestProxyBase::acceptLanguages() {
   return blink::WebString::fromUTF8(accept_languages_);
 }
 
 }  // namespace test_runner