Implement chrome.input.ime.setComposition/commitText 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 28ef642f4d305c72ecb86e37eca93f35e0e0dca0..5b57f627096ed8fd143b4f38afa5d19807e902f3 100644
--- a/chrome/browser/ui/input_method/input_method_engine_base.h
+++ b/chrome/browser/ui/input_method/input_method_engine_base.h
@@ -10,6 +10,7 @@
 #include <vector>
 #include "base/time/time.h"
 #include "ui/base/ime/chromeos/input_method_descriptor.h"
+#include "ui/base/ime/composition_text.h"
 #include "ui/base/ime/ime_engine_handler_interface.h"
 #include "url/gurl.h"
 
@@ -165,7 +166,17 @@ class InputMethodEngineBase : virtual public ui::IMEEngineHandlerInterface {
                       const std::vector<SegmentInfo>& segments,
                       std::string* error);
 
+  // Called when a key event was handled.
+  void KeyEventHandled();
+
  protected:
+  // Notifies InputContextHandler that the composition is changed.
+  virtual void UpdateComposition(const ui::CompositionText& composition_text,
+                                 uint32_t cursor_pos,
+                                 bool is_visible) = 0;
+  // Notifies InputContextHanlder to commit |text|.
+  virtual void CommitTextToInputContext(int context_id, const char* text) = 0;
+
   ui::TextInputType current_input_type_;
 
   // ID that is used for the current input context.  False if there is no focus.
@@ -187,11 +198,21 @@ class InputMethodEngineBase : virtual public ui::IMEEngineHandlerInterface {
   scoped_ptr<ui::CompositionText> composition_text_;
   int composition_cursor_;
 
+  // The composition text to be set from setComposition.
+  ui::CompositionText composition_;
+
+  // The text to be committed from calling commitText.
+  std::string text_;
+
   // Used with SendKeyEvents and ProcessKeyEvent to check if the key event
   // sent to ProcessKeyEvent is sent by SendKeyEvents.
   const ui::KeyEvent* sent_key_event_;
 
   Profile* profile_;
+
+  // Indicates whether the IME extension is currently handling a physical key
+  // event. This is used in CommitText/UpdateCompositionText/etc.
+  bool handling_key_event_;
 };
 
 }  // namespace input_method