Updates language model on iOS.

components/translate/ios/browser/language_detection_controller.h

Index: components/translate/ios/browser/language_detection_controller.h
diff --git a/components/translate/ios/browser/language_detection_controller.h b/components/translate/ios/browser/language_detection_controller.h
index c3271e829dcb331e39206b28f2940916aa46a298..a016bbf91a131b807f20d94ba1794d2424d932b9 100644
--- a/components/translate/ios/browser/language_detection_controller.h
+++ b/components/translate/ios/browser/language_detection_controller.h
@@ -35,6 +35,10 @@ class LanguageDetectionController : public web::WebStateObserver {
  public:
   // Language detection details, passed to language detection callbacks.
   struct DetectionDetails {

[martis, 2017/06/01 06:49:21]

Did you investigate reusing LanguageDetectionDetails from
components/translate/core/common/language_detection_details.h?

It might be too complex to unify the data types in this change, but we should
keep the possibility in mind.

[ramyasharma, 2017/06/02 07:20:24]

Yes, I did some basic investigation, and it looked too big a change for this CL.
Maybe I can look at it in the next CL? Have added a TODO.

+    DetectionDetails();
+    DetectionDetails(const DetectionDetails& other);
+    ~DetectionDetails();
+
     // The language detected by the content (Content-Language).
     std::string content_language;
 
@@ -43,6 +47,12 @@ class LanguageDetectionController : public web::WebStateObserver {
 
     // The adopted language.
     std::string adopted_language;
+
+    // The language detected by CLD.
+    std::string cld_language;
+
+    // Whether the CLD detection is reliable or not.
+    bool is_cld_reliable;
   };
 
   LanguageDetectionController(web::WebState* web_state,