Set header attributes for ExpandableBinaryDictionary.

...m/android/inputmethod/latin/AbstractDictionaryWriter.java

java/src/com/android/inputmethod/latin/DictionaryWriter.java

...android/inputmethod/latin/ExpandableBinaryDictionary.java

java/src/com/android/inputmethod/latin/LatinIME.java

java/src/com/android/inputmethod/latin/Suggest.java

...rc/com/android/inputmethod/latin/makedict/FormatSpec.java

...rsonalization/DecayingExpandableBinaryDictionaryBase.java

...rsonalization/DynamicPersonalizationDictionaryWriter.java

...rsonalization/PersonalizationDictionaryUpdateSession.java

...utmethod/latin/personalization/PersonalizationHelper.java

...utmethod/latin/personalization/UserHistoryDictionary.java

native/jni/src/suggest/core/dictionary/dictionary.cpp

native/jni/src/suggest/core/dictionary/dictionary.h

...hod/latin/personalization/UserHistoryDictionaryTests.java