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..b234c956ccdfe68d3fd9d1a2ad81ba2b6484c817 100644
--- a/third_party/WebKit/Source/web/WebLocalFrameImpl.h
+++ b/third_party/WebKit/Source/web/WebLocalFrameImpl.h
@@ -60,6 +60,7 @@ class WebDataSourceImpl;
 class WebDevToolsAgentImpl;
 class WebDevToolsFrontendImpl;
 class WebFrameClient;
+class WebInputMethodControllerImpl;
 class WebNode;
 class WebPerformance;
 class WebPlugin;
@@ -328,6 +329,8 @@ public:
     void setContextMenuNode(Node* node) { m_contextMenuNode = node; }
     void clearContextMenuNode() { m_contextMenuNode.clear(); }
 
+    WebInputMethodControllerImpl* inputMethodController() const;
+
     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().