Introduce WebInputMethodController to blink

third_party/WebKit/Source/web/WebViewImpl.h

Index: third_party/WebKit/Source/web/WebViewImpl.h
diff --git a/third_party/WebKit/Source/web/WebViewImpl.h b/third_party/WebKit/Source/web/WebViewImpl.h
index a69995d7d3a426ca11657f123a8234d91eab26c1..bc3ccc9f5fd69be8b7628d0dad0b0a0fd13e9684 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.h
+++ b/third_party/WebKit/Source/web/WebViewImpl.h
@@ -85,6 +85,7 @@ class UserGestureToken;
 class WebActiveGestureAnimation;
 class WebDevToolsAgentImpl;
 class WebElement;
+class WebInputMethodControllerImpl;
 class WebLayerTreeView;
 class WebLocalFrame;
 class WebLocalFrameImpl;
@@ -518,6 +519,11 @@ public:
 
     ChromeClientImpl& chromeClient() const { return *m_chromeClientImpl.get(); }
 
+    // Returns the currently active WebInputMethodController which the one
+    // corresponding to the focused frame. It will return nullptr if there are
+    // none or |m_imeAcceptEvents| is false.
+    WebInputMethodControllerImpl* getActiveWebInputMethodController() const;
+
 private:
     InspectorOverlay* inspectorOverlay();