Setting TestRunner's main window from BlinkTestRunner.

content/shell/renderer/layout_test/layout_test_render_thread_observer.cc

Index: content/shell/renderer/layout_test/layout_test_render_thread_observer.cc
diff --git a/content/shell/renderer/layout_test/layout_test_render_thread_observer.cc b/content/shell/renderer/layout_test/layout_test_render_thread_observer.cc
index bc23482f450553319a7a666cb38412de25c19511..abcbc95618e53a3cf72f732df0d320cf2a69ba03 100644
--- a/content/shell/renderer/layout_test/layout_test_render_thread_observer.cc
+++ b/content/shell/renderer/layout_test/layout_test_render_thread_observer.cc
@@ -14,7 +14,6 @@
 #include "content/shell/common/layout_test/layout_test_messages.h"
 #include "content/shell/common/layout_test/layout_test_switches.h"
 #include "content/shell/common/shell_messages.h"
-#include "content/shell/renderer/layout_test/blink_test_runner.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 #include "v8/include/v8.h"
@@ -34,8 +33,7 @@ LayoutTestRenderThreadObserver::GetInstance() {
   return g_instance;
 }
 
-LayoutTestRenderThreadObserver::LayoutTestRenderThreadObserver()
-    : test_delegate_(nullptr) {
+LayoutTestRenderThreadObserver::LayoutTestRenderThreadObserver() {
   CHECK(!g_instance);
   g_instance = this;
   RenderThread::Get()->AddObserver(this);
@@ -67,12 +65,6 @@ LayoutTestRenderThreadObserver::~LayoutTestRenderThreadObserver() {
   g_instance = NULL;
 }
 
-void LayoutTestRenderThreadObserver::SetTestDelegate(
-    test_runner::WebTestDelegate* delegate) {
-  test_interfaces_->SetDelegate(delegate);
-  test_delegate_ = delegate;
-}
-
 void LayoutTestRenderThreadObserver::OnRenderProcessShutdown() {
   test_interfaces_.reset();
 }