[KeyboardEvent] Add embedder APIs to translate between Dom |key| enum and strings

content/browser/renderer_host/web_input_event_aura_unittest.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 "content/browser/renderer_host/web_input_event_aura.h"
 
 #include "base/basictypes.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
@@ skipping 16 matching lines @@
   {
     // Press Ctrl.
     ui::KeyEvent event(ui::ET_KEY_PRESSED, ui::VKEY_CONTROL,
                        ui::DomCode::CONTROL_LEFT, ui::EF_CONTROL_DOWN);
     blink::WebKeyboardEvent webkit_event = MakeWebKeyboardEvent(event);
     // However, modifier bit for Control in |webkit_event| should be set.
     EXPECT_EQ(blink::WebInputEvent::ControlKey | blink::WebInputEvent::IsLeft,
               webkit_event.modifiers);
     EXPECT_EQ(static_cast<int>(ui::DomCode::CONTROL_LEFT),
               webkit_event.domCode);
+    EXPECT_EQ(static_cast<int>(ui::DomKey::CONTROL),
+              webkit_event.domKey);
   }
   {
     // Release Ctrl.
     ui::KeyEvent event(ui::ET_KEY_RELEASED, ui::VKEY_CONTROL,
                        ui::DomCode::CONTROL_LEFT, ui::EF_NONE);
     blink::WebKeyboardEvent webkit_event = MakeWebKeyboardEvent(event);
     // However, modifier bit for Control in |webkit_event| shouldn't be set.
     EXPECT_EQ(blink::WebInputEvent::IsLeft, webkit_event.modifiers);
     EXPECT_EQ(static_cast<int>(ui::DomCode::CONTROL_LEFT),
               webkit_event.domCode);
+    EXPECT_EQ(static_cast<int>(ui::DomKey::CONTROL),
+              webkit_event.domKey);
+
   }
 #if defined(USE_X11)
   const int kLocationModifiers =
       blink::WebInputEvent::IsLeft | blink::WebInputEvent::IsRight;
   ui::ScopedXI2Event xev;
   {
     // Press Ctrl.
     xev.InitKeyEvent(ui::ET_KEY_PRESSED, ui::VKEY_CONTROL, 0);
     ui::KeyEvent event(xev);
     blink::WebKeyboardEvent webkit_event = MakeWebKeyboardEvent(event);
@@ skipping 162 matching lines @@
         << "{dom_code:"
         << ui::KeycodeConverter::DomCodeToCodeString(test_case.dom_code)
         << ", ui_keycode:" << test_case.ui_keycode
         << ", x_keysym:" << test_case.x_keysym
         << "}, expect: " << test_case.expected_result;
   }
 #endif
 }
 
 }  // namespace content