Support InputMethodManager#updateCursorAnchorInfo for Android 5.0

content/public/android/java/src/org/chromium/content/browser/RenderCoordinates.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;
 
+import org.chromium.base.VisibleForTesting;
+
 /**
  * Cached copy of all positions and scales (CSS-to-DIP-to-physical pixels)
  * reported from the renderer.
  * Provides wrappers and a utility class to help with coordinate transforms on the client side.
  * Provides the internally-visible set of update methods (called from ContentViewCore).
  *
  * Unless stated otherwise, all coordinates are in CSS (document) coordinate space.
  */
 public class RenderCoordinates {
 
@@ skipping 51 matching lines @@
         mContentOffsetYPix = contentOffsetYPix;
 
         updateContentSizeCss(contentWidthCss, contentHeightCss);
         mLastFrameViewportWidthCss = viewportWidthCss;
         mLastFrameViewportHeightCss = viewportHeightCss;
 
         mHasFrameInfo = true;
     }
 
     /**
+     * Sets several fields for unit test. (used by {@link CursorAnchorInfoControllerTest}).
+     * @param deviceScaleFactor Device scale factor (maps DIP pixels to physical pixels).
+     * @param contentOffsetYPix Physical on-screen Y offset amount below the top controls.
+     */
+    @VisibleForTesting
+    public void setFrameInfoForTest(float deviceScaleFactor, float contentOffsetYPix) {
+        reset();
+        mDeviceScaleFactor = deviceScaleFactor;
+        mContentOffsetYPix = contentOffsetYPix;
+    }
+
+    /**
      * Handles conversion of a point from window-relative-local-dip or screen-pix
      * to document-absolute-CSS space and vice versa.
      */
     public class NormalizedPoint {
         private float mXAbsoluteCss, mYAbsoluteCss;
 
         private NormalizedPoint() {
         }
 
         /**
@@ skipping 287 matching lines @@
         return pix / (mDeviceScaleFactor * mPageScaleFactor);
     }
 
     /**
      * @return Local CSS converted to physical coordinates.
      */
     public float fromLocalCssToPix(float css) {
         return css * mPageScaleFactor * mDeviceScaleFactor;
     }
 }