Move language detection to a component

components/translate/common/translate_constants.cc

Index: components/translate/common/translate_constants.cc
diff --git a/content/common/gpu/surface_capturer.cc b/components/translate/common/translate_constants.cc
similarity index 51%
copy from content/common/gpu/surface_capturer.cc
copy to components/translate/common/translate_constants.cc
index ce02b4d83191c910841ef5f12ccfeba55d7e2dae..a51bb9349801d031f545cdbc037a8c8c34a98ac4 100644
--- a/content/common/gpu/surface_capturer.cc
+++ b/components/translate/common/translate_constants.cc
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/common/gpu/surface_capturer.h"
+#include "components/translate/common/translate_constants.h"
 
-namespace content {
+namespace translate {
 
-SurfaceCapturer::~SurfaceCapturer() {}
+const char* const kUnknownLanguageCode = "und";
 
-}  // namespace content
+}  // namespace translate