Introduce WebInputMethodController to blink

content/shell/renderer/layout_test/blink_test_runner.h

Index: content/shell/renderer/layout_test/blink_test_runner.h
diff --git a/content/shell/renderer/layout_test/blink_test_runner.h b/content/shell/renderer/layout_test/blink_test_runner.h
index ca233f9f36c1d753d45488efab1301866f6b9d99..4d69a11e51243d78c4993ce506c0cc0174c6602f 100644
--- a/content/shell/renderer/layout_test/blink_test_runner.h
+++ b/content/shell/renderer/layout_test/blink_test_runner.h
@@ -30,6 +30,7 @@ class DictionaryValue;
 namespace blink {
 class WebDeviceMotionData;
 class WebDeviceOrientationData;
+class WebFrame;
 class WebView;
 }
 
@@ -160,6 +161,7 @@ class BlinkTestRunner : public RenderViewObserver,
     const blink::WebPluginParams& params) override;
   float GetDeviceScaleFactor() const override;
   void RunIdleTasks(const base::Closure& callback) override;
+  void ForceTextInputStateUpdate(blink::WebFrame* frame) override;
 
   // Resets a RenderView to a known state for layout tests. It is used both when
   // a RenderView is created and when reusing an existing RenderView for the