Introducing the basic functionality to the speech input experimental API.

chrome/browser/extensions/speech_input/extension_speech_input_api_constants.h

Index: chrome/browser/extensions/speech_input/extension_speech_input_api_constants.h
diff --git a/chrome/browser/extensions/speech_input/extension_speech_input_api_constants.h b/chrome/browser/extensions/speech_input/extension_speech_input_api_constants.h
new file mode 100644
index 0000000000000000000000000000000000000000..80005324d545b56a84c9f10d0cc5788fbbe4fde0
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+++ b/chrome/browser/extensions/speech_input/extension_speech_input_api_constants.h
@@ -0,0 +1,41 @@
+// Copyright (c) 2011 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_SPEECH_INPUT_EXTENSION_SPEECH_INPUT_API_CONSTANTS_H_
+#define CHROME_BROWSER_EXTENSIONS_SPEECH_INPUT_EXTENSION_SPEECH_INPUT_API_CONSTANTS_H_
+
+namespace extension_speech_input_api_constants {
+
+extern const char kLanguageKey[];
+extern const char kGrammarKey[];
+extern const char kFilterProfanitiesKey[];
+
+extern const char kErrorNoDevicesAvailable[];
+extern const char kErrorUnableToStart[];
+extern const char kErrorRequestDenied[];
+extern const char kErrorRequestInProgress[];
+extern const char kErrorInvalidOperation[];
+
+extern const char kErrorCodeKey[];
+extern const char kErrorCaptureError[];
+extern const char kErrorNetworkError[];
+extern const char kErrorNoSpeechHeard[];
+extern const char kErrorNoResults[];
+
+extern const char kUtteranceKey[];
+extern const char kConfidenceKey[];
+extern const char kHypothesesKey[];
+
+extern const char kOnErrorEvent[];
+extern const char kOnResultEvent[];
+extern const char kOnSoundStartEvent[];
+extern const char kOnSoundEndEvent[];
+
+extern const char kDefaultLanguage[];
+extern const char kDefaultGrammar[];
+extern const bool kDefaultFilterProfanities;
+
+}  // namespace extension_speech_input_api_constants.
+
+#endif  // CHROME_BROWSER_EXTENSIONS_SPEECH_INPUT_EXTENSION_SPEECH_INPUT_API_CONSTANTS_H_