New thin layer of API extension chrome.i18n.detectLanguage

chrome/browser/extensions/api/i18n/i18n_api.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
 
+#include "base/strings/string16.h"
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
+// Added

[Takashi Toyoshima, 2015/07/08 03:19:41]

remove this comment line

[amalika, 2015/07/08 21:58:03]

Done.

+#include "third_party/cld_2/src/public/compact_lang_det.h"
+#include "third_party/cld_2/src/public/encodings.h"
 
 class Profile;
 
 namespace extensions {
 
 class I18nGetAcceptLanguagesFunction : public ChromeSyncExtensionFunction {
   ~I18nGetAcceptLanguagesFunction() override {}
   bool RunSync() override;
   DECLARE_EXTENSION_FUNCTION("i18n.getAcceptLanguages", I18N_GETACCEPTLANGUAGES)
 };
 
+typedef struct {

[Takashi Toyoshima, 2015/07/08 03:19:41]

I think 'typedef struct { ... }' is not famous in current chromium coding style.
class like syntax is used often recently.

[amalika, 2015/07/08 21:58:03]

Done.

[Takashi Toyoshima, 2015/07/09 03:32:34]

Not yet.

struct DetectedLanguage {
   std::string language;
   ...
};

+    std::string language;
+    int percentage;
+} DetectedLanguage;
+
+class I18nDetectLanguageFunction : public ChromeAsyncExtensionFunction {
+  private:

[Takashi Toyoshima, 2015/07/08 03:19:41]

wrong indent.
It would be useful to try 'git cl format' to check such errors.

[amalika, 2015/07/08 21:58:03]

Done.

+  ~I18nDetectLanguageFunction() override {};
+  bool RunAsync() override;
+  void GetLanguage(const std::string& text);
+  void SendLanguagesResult(DetectedLanguage *detected_langs,
+                           const bool is_reliable);
+  void InitDetectedLanguages(CLD2::Language *langs, int *percent3,
+                             DetectedLanguage detected_langs[3]);
+
+  DECLARE_EXTENSION_FUNCTION("i18n.detectLanguage", I18N_DETECTLANGUAGE)
+};
+
 }  // namespace extensions
 
-#endif  // CHROME_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
+#endif  // CHROME_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_