Add special treatment for space key

When on a TextView for number, space key is not consumed by the
conversion engine (number characters are consumed).  Then MozcService
did fallback, sending ACTION_UP/DOWN of KeyEvent.KEYCODE_SPACE.

However sending such key events are not handled correctly by TextView
class.  As workaround, this CL commits space character instead.

BUG=
TEST=compile
REF_BUG=20036218
REF_CL=92514509

src/android/src/com/google/android/inputmethod/japanese/MozcBaseService.java

@@ -1322,7 +1322,13 @@ private static KeyEvent createKeyEvent(
     }
 
     // Otherwise, just delegates the key event to the connected application.
-    sendDownUpKeyEvents(keyCode);
+    // However space key needs special treatment because it is expected to produce space character
+    // instead of sending ACTION_DOWN/UP pair.
+    if (keyCode == KeyEvent.KEYCODE_SPACE) {
+      inputConnection.commitText(" ", 0);
+    } else {
+      sendDownUpKeyEvents(keyCode);
+    }
   }
 
   /**

src/mozc_version_template.txt

@@ -1,6 +1,6 @@
 MAJOR=2
 MINOR=17
-BUILD=2354
+BUILD=2355
 REVISION=102
 # NACL_DICTIONARY_VERSION is the target version of the system dictionary to be
 # downloaded by NaCl Mozc.