Adding the page and DPI scale adjustment for Autofill Popups.

chrome/android/java/src/org/chromium/chrome/browser/autofill/AutofillPopup.java

 // Copyright (c) 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.chrome.browser.autofill;
 
 import android.content.Context;
 import android.content.res.Configuration;
 import android.graphics.Paint;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.AdapterView;
 import android.widget.FrameLayout;
 import android.widget.ListAdapter;
 import android.widget.ListPopupWindow;
 import android.widget.TextView;
 
 import java.util.ArrayList;
 
 import org.chromium.chrome.R;
 import org.chromium.content.browser.ContainerViewDelegate;
+import org.chromium.ui.gfx.DeviceDisplayInfo;
 import org.chromium.ui.gfx.NativeWindow;
 
 /**
  * The Autofill suggestion popup that lists relevant suggestions.
  */
 public class AutofillPopup extends ListPopupWindow implements AdapterView.OnItemClickListener {
 
     /**
      * Constants defining types of Autofill suggestion entries.
      * Has to be kept in sync with enum in WebAutofillClient.h
@@ skipping 106 matching lines @@
 
     /**
      * Sets the location and the size of the anchor view that the AutofillPopup will use to attach
      * itself.
      * @param x X coordinate of the top left corner of the anchor view.
      * @param y Y coordinate of the top left corner of the anchor view.
      * @param width The width of the anchor view.
      * @param height The height of the anchor view.
      */
     public void setAnchorRect(float x, float y, float width, float height) {
-        mAnchorRect = new Rect((int) x, (int) y, (int) (x + width), (int) (y + height));
+        float scale = (float) DeviceDisplayInfo.create(mNativeWindow.getContext()).getDIPScale();
+        mAnchorRect = new Rect(Math.round(x * scale), Math.round(y * scale),
+                Math.round((x + width) * scale), Math.round((y + height) * scale));
     }
 
     /**
      * Sets the Autofill suggestions to display in the popup and shows the popup.
      * @param suggestions Autofill suggestion data.
      */
     public void show(AutofillSuggestion[] suggestions) {
         // Remove the AutofillSuggestions with IDs that are not supported by Android
         ArrayList<AutofillSuggestion> cleanedData = new ArrayList<AutofillSuggestion>();
         for (int i = 0; i < suggestions.length; i++) {
@@ skipping 54 matching lines @@
         return maxTextWidth + (int) (TEXT_PADDING_DP *
                 mNativeWindow.getContext().getResources().getDisplayMetrics().density);
     }
 
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
         mAutofillCallback.suggestionSelected(position);
     }
 
 }