Bug 1242173 - Typing in input fields does not visually update r=

gfx/layers/apz/src/AsyncPanZoomController.cpp

@@ -2887,6 +2887,7 @@ AsyncPanZoomController::RequestContentRepaint(const FrameMetrics& aFrameMetrics,
             aFrameMetrics.GetScrollOffset().x) < EPSILON &&
       fabsf(mLastPaintRequestMetrics.GetScrollOffset().y -
             aFrameMetrics.GetScrollOffset().y) < EPSILON &&
+      aFrameMetrics.GetPresShellResolution() == mLastPaintRequestMetrics.GetPresShellResolution() &&
       aFrameMetrics.GetZoom() == mLastPaintRequestMetrics.GetZoom() &&
       fabsf(aFrameMetrics.GetViewport().width -
             mLastPaintRequestMetrics.GetViewport().width) < EPSILON &&
@@ -3315,6 +3316,9 @@ void AsyncPanZoomController::NotifyLayersUpdated(const FrameMetrics& aLayerMetri
                                     / mFrameMetrics.GetCumulativeResolution();
       float presShellResolutionChange = aLayerMetrics.GetPresShellResolution()
                                       / mFrameMetrics.GetPresShellResolution();
+      if (presShellResolutionChange != 1.0f) {
+        needContentRepaint = true;
+      }
       mFrameMetrics.ZoomBy(totalResolutionChange / presShellResolutionChange);
     } else {
       // Take the new zoom as either device scale or composition width or