Implement input.ime.sendKeyEvents API.

chrome/browser/ui/input_method/input_method_engine_base.h

Index: chrome/browser/ui/input_method/input_method_engine_base.h
diff --git a/chrome/browser/ui/input_method/input_method_engine_base.h b/chrome/browser/ui/input_method/input_method_engine_base.h
index 1ca4a1620fb024d3bc189230e01c677ea323bae4..dcf5d7c224001ef65a2a638850a648b59a7bf8f6 100644
--- a/chrome/browser/ui/input_method/input_method_engine_base.h
+++ b/chrome/browser/ui/input_method/input_method_engine_base.h
@@ -154,8 +154,7 @@ class InputMethodEngineBase : virtual public ui::IMEEngineHandlerInterface {
   bool IsInterestedInKeyEvent() const override;
 
   // Send the sequence of key events.
-  virtual bool SendKeyEvents(int context_id,
-                             const std::vector<KeyboardEvent>& events) = 0;
+  bool SendKeyEvents(int context_id, const std::vector<KeyboardEvent>& events);
 
   // Set the current composition and associated properties.
   bool SetComposition(int context_id,
@@ -186,6 +185,8 @@ class InputMethodEngineBase : virtual public ui::IMEEngineHandlerInterface {
   // Notifies InputContextHanlder to commit |text|.
   virtual void CommitTextToInputContext(int context_id,
                                         const std::string& text) = 0;
+  // Sends the key event to the window tree host.
+  virtual bool SendKeyEvent(ui::KeyEvent* ui_event) = 0;

[Devlin, 2016/03/10 23:21:14]

Could this be a const ui::KeyEvent&?  If not, can you clarify here if it can be
null, and add a couple DCHECKs?

[Azure Wei, 2016/03/11 07:29:01]

DCHECKs were added. We need the set the state of the event, so it should be
ui::KeyEvent*.

 
   ui::TextInputType current_input_type_;