Introduce WebInputMethodController to blink

components/test_runner/web_widget_test_client.cc

Index: components/test_runner/web_widget_test_client.cc
diff --git a/components/test_runner/web_widget_test_client.cc b/components/test_runner/web_widget_test_client.cc
index add8afdd0ffb75a1e7dc840e6968323ddf82838c..3f29ab9aa9d08b23bbc8ba6a55d6937bbe25c46c 100644
--- a/components/test_runner/web_widget_test_client.cc
+++ b/components/test_runner/web_widget_test_client.cc
@@ -16,7 +16,11 @@
 #include "components/test_runner/web_view_test_proxy.h"
 #include "components/test_runner/web_widget_test_proxy.h"
 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
+#include "third_party/WebKit/public/web/WebFrameWidget.h"
+#include "third_party/WebKit/public/web/WebInputMethodController.h"
+#include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebPagePopup.h"
+#include "third_party/WebKit/public/web/WebView.h"
 #include "third_party/WebKit/public/web/WebWidget.h"
 
 namespace test_runner {
@@ -94,14 +98,6 @@ void WebWidgetTestClient::setToolTipText(const blink::WebString& text,
   test_runner()->setToolTipText(text);
 }
 
-void WebWidgetTestClient::resetInputMethod() {
-  // If a composition text exists, then we need to let the browser process
-  // to cancel the input method's ongoing composition session.
-  if (web_widget_test_proxy_base_)
-    web_widget_test_proxy_base_->web_widget()->finishComposingText(
-        blink::WebWidget::KeepSelection);
-}
-
 TestRunnerForSpecificView* WebWidgetTestClient::view_test_runner() {
   return web_widget_test_proxy_base_->web_view_test_proxy_base()
       ->view_test_runner();