Supports fake key events for setComposition/commitText by on-screen keyboards.

ui/base/ime/input_method_chromeos.cc

Index: ui/base/ime/input_method_chromeos.cc
diff --git a/ui/base/ime/input_method_chromeos.cc b/ui/base/ime/input_method_chromeos.cc
index c951b4398489902ea3706c2236b476345d9f8e7b..8bea1390b82f25a458c0861e08118778eb647879 100644
--- a/ui/base/ime/input_method_chromeos.cc
+++ b/ui/base/ime/input_method_chromeos.cc
@@ -438,6 +438,14 @@ bool InputMethodChromeOS::HasInputMethodResult() const {
   return result_text_.length() || composition_changed_;
 }
 
+void InputMethodChromeOS::SendFakeProcessKeyEvent(bool pressed) const {
+  KeyEvent evt(pressed ? ET_KEY_PRESSED : ET_KEY_RELEASED,
+               pressed ? VKEY_PROCESSKEY : VKEY_UNKNOWN,
+               EF_IME_FABRICATED_KEY,
+               false);  // is_char
+  DispatchKeyEventPostIME(evt);
+}
+
 void InputMethodChromeOS::AbandonAllPendingKeyEvents() {
   pending_key_events_.clear();
 }
@@ -463,7 +471,9 @@ void InputMethodChromeOS::CommitText(const std::string& text) {
   // If we are not handling key event, do not bother sending text result if the
   // focused text input client does not support text input.
   if (pending_key_events_.empty() && !IsTextInputTypeNone()) {
+    SendFakeProcessKeyEvent(true);
     GetTextInputClient()->InsertText(utf16_text);
+    SendFakeProcessKeyEvent(false);
     result_text_.clear();
   }
 }
@@ -505,7 +515,9 @@ void InputMethodChromeOS::UpdateCompositionText(
   // If we receive a composition text without pending key event, then we need to
   // send it to the focused text input client directly.
   if (pending_key_events_.empty()) {
+    SendFakeProcessKeyEvent(true);
     GetTextInputClient()->SetCompositionText(composition_);
+    SendFakeProcessKeyEvent(false);
     composition_changed_ = false;
     composition_.Clear();
   }
@@ -521,8 +533,11 @@ void InputMethodChromeOS::HidePreeditText() {
 
   if (pending_key_events_.empty()) {
     TextInputClient* client = GetTextInputClient();
-    if (client && client->HasCompositionText())
+    if (client && client->HasCompositionText()) {
+      SendFakeProcessKeyEvent(true);
       client->ClearCompositionText();
+      SendFakeProcessKeyEvent(false);
+    }
     composition_changed_ = false;
   }
 }