Not allowing user to type more chars than max length value for text field.

content/public/android/java/src/org/chromium/content/browser/input/AdapterInputConnection.java

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser.input;
 
 import android.os.SystemClock;
 import android.text.Editable;
 import android.text.InputType;
 import android.text.Selection;
@@ skipping 195 matching lines @@
         mLastUpdateCompositionStart = compositionStart;
         mLastUpdateCompositionEnd = compositionEnd;
     }
 
     /**
      * @see BaseInputConnection#setComposingText(java.lang.CharSequence, int)
      */
     @Override
     public boolean setComposingText(CharSequence text, int newCursorPosition) {
         if (DEBUG) Log.w(TAG, "setComposingText [" + text + "] [" + newCursorPosition + "]");
+        if (mEditable.length() == mImeAdapter.getInputElementMaxLength()) {
+            finishComposingText();
+            return true;
+        }
         if (maybePerformEmptyCompositionWorkaround(text)) return true;
         super.setComposingText(text, newCursorPosition);
         updateSelectionIfRequired();
         return mImeAdapter.checkCompositionQueueAndCallNative(text, newCursorPosition, false);
     }
 
     /**
      * @see BaseInputConnection#commitText(java.lang.CharSequence, int)
      */
     @Override
     public boolean commitText(CharSequence text, int newCursorPosition) {
         if (DEBUG) Log.w(TAG, "commitText [" + text + "] [" + newCursorPosition + "]");
+        if (mEditable.length() == mImeAdapter.getInputElementMaxLength()) {
+            finishComposingText();
+            return true;
+        }
         if (maybePerformEmptyCompositionWorkaround(text)) return true;
         super.commitText(text, newCursorPosition);
         updateSelectionIfRequired();
         return mImeAdapter.checkCompositionQueueAndCallNative(text, newCursorPosition,
                 text.length() > 0);
     }
 
     /**
      * @see BaseInputConnection#performEditorAction(int)
      */
@@ skipping 286 matching lines @@
     @VisibleForTesting
     ImeState getImeStateForTesting() {
         String text = mEditable.toString();
         int selectionStart = Selection.getSelectionStart(mEditable);
         int selectionEnd = Selection.getSelectionEnd(mEditable);
         int compositionStart = getComposingSpanStart(mEditable);
         int compositionEnd = getComposingSpanEnd(mEditable);
         return new ImeState(text, selectionStart, selectionEnd, compositionStart, compositionEnd);
     }
 }