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

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

 // Copyright 2012 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.Handler;
 import android.os.ResultReceiver;
 import android.os.SystemClock;
 import android.text.Editable;
@@ skipping 109 matching lines @@
     static KeyCharacterMap sKeyCharacterMap;
 
     private long mNativeImeAdapterAndroid;
     private InputMethodManagerWrapper mInputMethodManagerWrapper;
     private AdapterInputConnection mInputConnection;
     private final ImeAdapterDelegate mViewEmbedder;
     private final Handler mHandler;
     private DelayedDismissInput mDismissInput = null;
     private int mTextInputType;
     private String mLastComposeText;
+    private int mInputElementMaxLength;
 
     @VisibleForTesting
     int mLastSyntheticKeyCode;
 
     @VisibleForTesting
     boolean mIsShowWithoutHideOutstanding = false;
 
     /**
      * @param wrapper InputMethodManagerWrapper that should receive all the call directed to
      *                InputMethodManager.
@@ skipping 415 matching lines @@
     /**
      * Send a request to the native counterpart of ImeAdapter to paste the text from the clipboard.
      * @return Whether the native counterpart of ImeAdapter received the call.
      */
     public boolean paste() {
         if (mNativeImeAdapterAndroid == 0) return false;
         nativePaste(mNativeImeAdapterAndroid);
         return true;
     }
 
+    public int getInputElementMaxLength() {
+        return mInputElementMaxLength;
+    }
     // Calls from C++ to Java
 
     @CalledByNative
     private static void initializeWebInputEvents(int eventTypeRawKeyDown, int eventTypeKeyUp,
             int eventTypeChar, int modifierShift, int modifierAlt, int modifierCtrl,
             int modifierCapsLockOn, int modifierNumLockOn) {
         sEventTypeRawKeyDown = eventTypeRawKeyDown;
         sEventTypeKeyUp = eventTypeKeyUp;
         sEventTypeChar = eventTypeChar;
         sModifierShift = modifierShift;
@@ skipping 14 matching lines @@
         sTextInputTypePassword = textInputTypePassword;
         sTextInputTypeSearch = textInputTypeSearch;
         sTextInputTypeUrl = textInputTypeUrl;
         sTextInputTypeEmail = textInputTypeEmail;
         sTextInputTypeTel = textInputTypeTel;
         sTextInputTypeNumber = textInputTypeNumber;
         sTextInputTypeContentEditable = textInputTypeContentEditable;
     }
 
     @CalledByNative
-    private void focusedNodeChanged(boolean isEditable) {
+    private void focusedNodeChanged(boolean isEditable, int editableNodeMaxLength) {
+        mInputElementMaxLength = editableNodeMaxLength;
         if (mInputConnection != null && isEditable) mInputConnection.restartInput();
     }
 
     @CalledByNative
     private void populateUnderlinesFromSpans(CharSequence text, long underlines) {
         if (!(text instanceof SpannableString)) return;
 
         SpannableString spannableString = ((SpannableString) text);
         CharacterStyle spans[] =
                 spannableString.getSpans(0, text.length(), CharacterStyle.class);
@@ skipping 51 matching lines @@
     private native void nativeDeleteSurroundingText(long nativeImeAdapterAndroid,
             int before, int after);
 
     private native void nativeUnselect(long nativeImeAdapterAndroid);
     private native void nativeSelectAll(long nativeImeAdapterAndroid);
     private native void nativeCut(long nativeImeAdapterAndroid);
     private native void nativeCopy(long nativeImeAdapterAndroid);
     private native void nativePaste(long nativeImeAdapterAndroid);
     private native void nativeResetImeAdapter(long nativeImeAdapterAndroid);
 }