Support InputMethodManager#updateCursorAnchorInfo for Android 5.0

content/public/android/java/src/org/chromium/content/browser/RenderCoordinates.java

Index: content/public/android/java/src/org/chromium/content/browser/RenderCoordinates.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/RenderCoordinates.java b/content/public/android/java/src/org/chromium/content/browser/RenderCoordinates.java
index 89faf913d6afc620b7a6ad89ba55b47df5f3318c..c56660c2c99ccbd48ac9face8ba7c9f2401ca017 100644
--- a/content/public/android/java/src/org/chromium/content/browser/RenderCoordinates.java
+++ b/content/public/android/java/src/org/chromium/content/browser/RenderCoordinates.java
@@ -4,6 +4,8 @@
 
 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.
@@ -75,6 +77,18 @@ public class RenderCoordinates {
     }
 
     /**
+     * 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.
      */