Use correct WebView from TestRunner methods called via testRunner bindings.

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 53870f3831c4202878c2bde44bcef4cdae4ce669..18aa21a6928f2bbb468c827755f26e954a724ad1 100644
--- a/components/test_runner/web_test_proxy.h
+++ b/components/test_runner/web_test_proxy.h
@@ -44,6 +44,7 @@ namespace test_runner {
 class AccessibilityController;
 class EventSender;
 class TestInterfaces;
+class TestRunnerForSpecificView;
 class TextInputController;
 class WebTestDelegate;
 class WebTestInterfaces;
@@ -112,6 +113,7 @@ class TEST_RUNNER_EXPORT WebTestProxyBase {
   scoped_ptr<AccessibilityController> accessibility_controller_;
   scoped_ptr<EventSender> event_sender_;
   scoped_ptr<TextInputController> text_input_controller_;
+  scoped_ptr<TestRunnerForSpecificView> view_test_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(WebTestProxyBase);
 };