Commit 4ea51443 authored by Andreas Pehrson's avatar Andreas Pehrson
Browse files

Bug 1631476 - Don't let CanvasRenderingContext2D::EnsureTarget lead to frame capture. r=nical 

Differential Revision: https://phabricator.services.mozilla.com/D93066
parent ec8e96ed

dom/canvas/CanvasRenderingContext2D.cpp

+3 −0
Original line number Diff line number Diff line
@@ -1316,9 +1316,12 @@ bool CanvasRenderingContext2D::EnsureTarget(const gfx::Rect* aCoveredRect, 
  if (mCanvasElement) {

    mCanvasElement->InvalidateCanvas();

  }

  // EnsureTarget hasn't drawn anything. Preserve mIsCapturedFrameInvalid.

  bool capturedFrameInvalid = mIsCapturedFrameInvalid;

  // Calling Redraw() tells our invalidation machinery that the entire

  // canvas is already invalid, which can speed up future drawing.

  Redraw();

  mIsCapturedFrameInvalid = capturedFrameInvalid;



  return true;

}