[android] Password generation UI for android.

ui/android/java/src/org/chromium/ui/DropdownPopupWindow.java

 // Copyright 2014 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.ui;
 
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.Log;
 import android.view.View;
@@ skipping 131 matching lines @@
 
     @Override
     public void setOnDismissListener(PopupWindow.OnDismissListener listener) {
         mOnDismissListener = listener;
     }
 
     /**
      * Sets the text direction in the dropdown. Should be called before show().
      * @param isRtl If true, then dropdown text direciton is right to left.
      */
-    protected void setRtl(boolean isRtl) {
+    public void setRtl(boolean isRtl) {
         mRtl = isRtl;
     }
 
     /**
+     * Returns the width of the anchor to which this popup is attached.
+     * @return The width of the anchor.
+     */
+    public float getAnchorWidth() {
+        return mAnchorWidth;
+    }
+
+    /**
      * Measures the width of the list content.
      * @return The popup window width in pixels.
      */
     private int measureContentWidth() {
+        if (mAdapter == null) return 0;

[aurimas (slooooooooow), 2014/10/23 00:57:01]

Why would mAdapter be null?

         int maxWidth = 0;
-        View itemView = null;
-        if (mAdapter == null) return 0;
+        View[] itemViews = new View[mAdapter.getViewTypeCount()];
         final int widthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
         final int heightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
         for (int i = 0; i < mAdapter.getCount(); i++) {
-            itemView = mAdapter.getView(i, itemView, null);
+            int type = mAdapter.getItemViewType(i);
+            itemViews[type] = mAdapter.getView(i, itemViews[type], null);
+            View itemView = itemViews[type];
             LinearLayout.LayoutParams params =
                     new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
                             LinearLayout.LayoutParams.WRAP_CONTENT);
             itemView.setLayoutParams(params);
             itemView.measure(widthMeasureSpec, heightMeasureSpec);
             maxWidth = Math.max(maxWidth, itemView.getMeasuredWidth());
         }
         return maxWidth;
     }
 }