Replace LayoutTests/paint/invalidation/text-selection-focus.html with a SimTest.

third_party/WebKit/Source/web/tests/sim/SimTest.h

Index: third_party/WebKit/Source/web/tests/sim/SimTest.h
diff --git a/third_party/WebKit/Source/web/tests/sim/SimTest.h b/third_party/WebKit/Source/web/tests/sim/SimTest.h
index 3d05a0272e07d7112673779985ed1b3164a26340..b56f41f3aa048ee7f5643a43e9eed5cba6466c4d 100644
--- a/third_party/WebKit/Source/web/tests/sim/SimTest.h
+++ b/third_party/WebKit/Source/web/tests/sim/SimTest.h
@@ -8,6 +8,7 @@
 #include "web/tests/FrameTestHelpers.h"
 #include "web/tests/sim/SimCompositor.h"
 #include "web/tests/sim/SimNetwork.h"
+#include "web/tests/sim/SimPage.h"
 #include "web/tests/sim/SimWebViewClient.h"
 #include <gtest/gtest.h>
 
@@ -15,6 +16,7 @@ namespace blink {
 
 class WebViewImpl;
 class Document;
+class LocalDOMWindow;
 
 class SimTest : public ::testing::Test {
  protected:
@@ -23,6 +25,8 @@ class SimTest : public ::testing::Test {
 
   void loadURL(const String& url);
 
+  LocalDOMWindow& window();
+  SimPage& page();
   Document& document();
   WebViewImpl& webView();
   const SimWebViewClient& webViewClient() const;
@@ -32,6 +36,7 @@ class SimTest : public ::testing::Test {
   SimNetwork m_network;
   SimCompositor m_compositor;
   SimWebViewClient m_webViewClient;
+  SimPage m_page;
   FrameTestHelpers::WebViewHelper m_webViewHelper;
 };