Introduce WebInputMethodController to blink

third_party/WebKit/Source/web/WebLocalFrameImpl.h

Index: third_party/WebKit/Source/web/WebLocalFrameImpl.h
diff --git a/third_party/WebKit/Source/web/WebLocalFrameImpl.h b/third_party/WebKit/Source/web/WebLocalFrameImpl.h
index 595f4153a21d31f3ce8da041b331cb01b07606d5..0163dff9871938ef15e720f59098e2aae8d67c27 100644
--- a/third_party/WebKit/Source/web/WebLocalFrameImpl.h
+++ b/third_party/WebKit/Source/web/WebLocalFrameImpl.h
@@ -42,6 +42,7 @@
 #include "web/WebExport.h"
 #include "web/WebFrameImplBase.h"
 #include "web/WebFrameWidgetBase.h"
+#include "web/WebInputMethodControllerImpl.h"
 #include "wtf/Compiler.h"
 #include "wtf/text/WTFString.h"
 #include <memory>
@@ -328,6 +329,8 @@ public:
     void setContextMenuNode(Node* node) { m_contextMenuNode = node; }
     void clearContextMenuNode() { m_contextMenuNode.clear(); }
 
+    WebInputMethodControllerImpl* inputMethodController();
+
     DECLARE_TRACE();
 
 private:
@@ -388,6 +391,8 @@ private:
 
     Member<Node> m_contextMenuNode;
 
+    std::unique_ptr<WebInputMethodControllerImpl> m_inputMethodController;
+
     // Oilpan: WebLocalFrameImpl must remain alive until close() is called.
     // Accomplish that by keeping a self-referential Persistent<>. It is
     // cleared upon close().