Add logger for ImeFeature messages.

blimp/common/logging_unittest.cc

Index: blimp/common/logging_unittest.cc
diff --git a/blimp/common/logging_unittest.cc b/blimp/common/logging_unittest.cc
index 6d2edbd4be950de464de2ea39941380cf1729615..ed3a383ca1abfaf47e976be2ca18e43a99917286 100644
--- a/blimp/common/logging_unittest.cc
+++ b/blimp/common/logging_unittest.cc
@@ -247,5 +247,30 @@ TEST_F(LoggingTest, Settings) {
       message);
 }
 
+TEST_F(LoggingTest, Ime) {
+  BlimpMessage message;
+  message.mutable_ime()->set_render_widget_id(1);
+
+  // Test SHOW_IME.
+  message.mutable_ime()->set_type(ImeMessage::SHOW_IME);
+  message.mutable_ime()->set_text_input_type(ImeMessage::NONE);
+  VerifyLogOutput(
+      "type=IME render_widget_id=1 subtype=SHOW_IME text_input_type=0",
+      message);
+
+  // Test HIDE_IME.
+  message.mutable_ime()->set_type(ImeMessage::HIDE_IME);
+  VerifyLogOutput(
+      "type=IME render_widget_id=1 subtype=HIDE_IME",
+      message);
+
+  // Test SET_TEXT.
+  message.mutable_ime()->set_type(ImeMessage::SET_TEXT);
+  message.mutable_ime()->set_ime_text("1234");
+  VerifyLogOutput(
+      "type=IME render_widget_id=1 subtype=SET_TEXT ime_text(length)=4",
+      message);
+}
+
 }  // namespace
 }  // namespace blimp