Fix a misspelled method name

Change-Id: I1151dc1d5db3986a97daf68c1e387dbc2e4610dc

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

@@ -133,7 +133,7 @@ public class NgramContext {
 
     // n is 1-indexed.
     @UsedForTesting
-    public boolean isNthPrevWordBeginningOfSontence(final int n) {
+    public boolean isNthPrevWordBeginningOfSentence(final int n) {
         if (n <= 0 || n > mPrevWordsCount) {
             return false;
         }

java/src/com/android/inputmethod/latin/utils/CombinedFormatUtils.java

@@ -88,7 +88,7 @@ public class CombinedFormatUtils {
                 for (int i = 0; i < ngramProperty.mNgramContext.getPrevWordCount(); i++) {
                     builder.append("  " + NGRAM_PREV_WORD_TAG + "[" + i + "]="
                             + ngramProperty.mNgramContext.getNthPrevWord(i + 1));
-                    if (ngramProperty.mNgramContext.isNthPrevWordBeginningOfSontence(i + 1)) {
+                    if (ngramProperty.mNgramContext.isNthPrevWordBeginningOfSentence(i + 1)) {
                         builder.append("," + BEGINNING_OF_SENTENCE_TAG + "=true");
                     }
                     builder.append("\n");

tests/src/com/android/inputmethod/latin/RichInputConnectionAndTextRangeTests.java

@@ -176,7 +176,7 @@ public class RichInputConnectionAndTextRangeTests extends AndroidTestCase {
         assertEquals(NgramContextUtils.getNgramContextFromNthPreviousWord(
                 "abc def", mSpacingAndPunctuations, 1).getNthPrevWord(2), "abc");
         assertTrue(NgramContextUtils.getNgramContextFromNthPreviousWord(
-                "abc def", mSpacingAndPunctuations, 2).isNthPrevWordBeginningOfSontence(2));
+                "abc def", mSpacingAndPunctuations, 2).isNthPrevWordBeginningOfSentence(2));
 
         // The following tests reflect the current behavior of the function
         // RichInputConnection#getNthPreviousWord.