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Introduce EditorInfo.IME_FLAG_NO_PERSONALIZED_LEARNING
In some situations it would be useful if the application can give a hint that the user is not likely to want the IME to update personalized data such as typing history and personalized language model based on what the user typed the input area. Typical use cases are: * When the application is in a special mode, where user's activities are expected to be not recorded in the application's history. Some web browsers and chat applications may have this kind of modes. * When storing typing history does not make much sense. Specifying this flag in typing games may help to avoid typing history from being filled up with words that the user is less likely to type in their daily life. Another example is that when the application already knows that the expected input is not a valid word (e.g. a promotion code that is not a valid word in any natural language). Applications need to be aware that the flag is not a guarantee, and some IMEs may not respect it. Since this is basically about the general behavior that can be combined with any of type of input types, this CL uses EditorInfo.imeOptions instead of EditorInfo.inputType. Also so far it look OK to do nothing in EditorInfo#makeCompatible() regarding this flag because 1) this bit (0x1000000) has never been used and 2) it is less likely that just passing that bit to an IME that do not know about this bit causes any issue. Bug: 28157942 Test: compile only as this is just a hint and OS does nothing Change-Id: Ibf5ac3d2b8f39542baf2635c0cadbe242b059f81