Eliminate hw.keyboards system properties.

Stop using system properties to publish information about
the key character map path.  Instead, we can retrieve it
on demand by asking the window manager.

It was possible to exhaust the supply of system properties
when repeatedly adding and removing input devices.

Bug: 5532806
Change-Id: Idd361a24ad7db2edc185c8546db7fb05f9c28669

3 files changed, 4 insertions, 19 deletions

diff --git a/include/ui/Input.h b/include/ui/Input.h
index 438a1a0..c2cbe1d 100644
--- a/include/ui/Input.h
+++ b/include/ui/Input.h
@@ -826,6 +826,9 @@ public:
     inline void setKeyboardType(int32_t keyboardType) { mKeyboardType = keyboardType; }
     inline int32_t getKeyboardType() const { return mKeyboardType; }
 
+    inline void setKeyCharacterMapFile(const String8& value) { mKeyCharacterMapFile = value; }
+    inline const String8& getKeyCharacterMapFile() const { return mKeyCharacterMapFile; }
+
     inline const Vector<MotionRange>& getMotionRanges() const {
         return mMotionRanges;
     }
@@ -835,6 +838,7 @@ private:
     String8 mName;
     uint32_t mSources;
     int32_t mKeyboardType;
+    String8 mKeyCharacterMapFile;
 
     Vector<MotionRange> mMotionRanges;
 };
diff --git a/include/ui/KeyCharacterMap.h b/include/ui/KeyCharacterMap.h
index 10a3810..be14432 100644
--- a/include/ui/KeyCharacterMap.h
+++ b/include/ui/KeyCharacterMap.h
@@ -53,7 +53,6 @@ public:
     ~KeyCharacterMap();
 
     static status_t load(const String8& filename, KeyCharacterMap** outMap);
-    static status_t loadByDeviceId(int32_t deviceId, KeyCharacterMap** outMap);
 
     /* Gets the keyboard type. */
     int32_t getKeyboardType() const;
diff --git a/include/ui/Keyboard.h b/include/ui/Keyboard.h
index 609f319..274f526 100644
--- a/include/ui/Keyboard.h
+++ b/include/ui/Keyboard.h
@@ -81,24 +81,6 @@ extern bool isEligibleBuiltInKeyboard(const InputDeviceIdentifier& deviceIdentif
         const PropertyMap* deviceConfiguration, const KeyMap* keyMap);
 
 /**
- * Sets keyboard system properties.
- */
-extern void setKeyboardProperties(int32_t deviceId, const InputDeviceIdentifier& deviceIdentifier,
-        const String8& keyLayoutFile, const String8& keyCharacterMapFile);
-
-/**
- * Clears keyboard system properties.
- */
-extern void clearKeyboardProperties(int32_t deviceId);
-
-/**
- * Gets the key character map filename for a device using inspecting system properties
- * and then falling back on a default key character map if necessary.
- * Returns a NAME_NOT_FOUND if none found.
- */
-extern status_t getKeyCharacterMapFile(int32_t deviceId, String8& outKeyCharacterMapFile);
-
-/**
  * Gets a key code by its short form label, eg. "HOME".
  * Returns 0 if unknown.
  */