Notify BrowserAccessibilityManager of frame info after already loaded

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 12b2fdddcf70efcb01d7b85a746dc1a0cd44ca3a..89faf913d6afc620b7a6ad89ba55b47df5f3318c 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
@@ -36,10 +36,13 @@ public class RenderCoordinates {
 
     private float mContentOffsetYPix;
 
+    private boolean mHasFrameInfo;
+
     // Internally-visible set of update methods (used by ContentViewCore).
     void reset() {
         mScrollXCss = mScrollYCss = 0;
         mPageScaleFactor = 1.0f;
+        mHasFrameInfo = false;
     }
 
     void updateContentSizeCss(float contentWidthCss, float contentHeightCss) {
@@ -67,6 +70,8 @@ public class RenderCoordinates {
         updateContentSizeCss(contentWidthCss, contentHeightCss);
         mLastFrameViewportWidthCss = viewportWidthCss;
         mLastFrameViewportHeightCss = viewportHeightCss;
+
+        mHasFrameInfo = true;
     }
 
     /**
@@ -343,6 +348,13 @@ public class RenderCoordinates {
     }
 
     /**
+     * @return Whether a frame info update has been received.
+     */
+    public boolean hasFrameInfo() {
+        return mHasFrameInfo;
+    }
+
+    /**
      * @return Physical on-screen coordinate converted to local DIP.
      */
     public float fromPixToDip(float pix) {