Support invisible underline for IME composition.

chrome/browser/extensions/api/input_ime/input_ime_api.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/input_ime/input_ime_api.h"
 
 #include "base/profiler/scoped_profile.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/input_method/input_method_engine.h"
@@ skipping 472 matching lines @@
       EXTENSION_FUNCTION_VALIDATE(
           segments_args[i]->style !=
           SetComposition::Params::Parameters::SegmentsType::STYLE_NONE);
       segments.push_back(InputMethodEngineInterface::SegmentInfo());
       segments.back().start = segments_args[i]->start;
       segments.back().end = segments_args[i]->end;
       if (segments_args[i]->style ==
           SetComposition::Params::Parameters::SegmentsType::STYLE_UNDERLINE) {
         segments.back().style =
             InputMethodEngineInterface::SEGMENT_STYLE_UNDERLINE;
+      } else if (segments_args[i]->style ==
+                 SetComposition::Params::Parameters::SegmentsType::
+                     STYLE_DOUBLEUNDERLINE) {
+        segments.back().style =
+            InputMethodEngineInterface::SEGMENT_STYLE_DOUBLE_UNDERLINE;
       } else {
         segments.back().style =
-            InputMethodEngineInterface::SEGMENT_STYLE_DOUBLE_UNDERLINE;
+            InputMethodEngineInterface::SEGMENT_STYLE_NO_UNDERLINE;
       }
     }
   }
 
   int selection_start =
       params.selection_start ? *params.selection_start : params.cursor;
   int selection_end =
       params.selection_end ? *params.selection_end : params.cursor;
 
   SetResult(new base::FundamentalValue(
@@ skipping 350 matching lines @@
   // Notifies the IME extension for IME ready with onActivate/onFocus events.
   if (engine)
     engine->Enable(engine->GetActiveComponentId());
 }
 
 InputImeEventRouter* InputImeAPI::input_ime_event_router() {
   return InputImeEventRouter::GetInstance();
 }
 
 }  // namespace extensions