Remove unused is_opaque arg to CanvasImageSource().

Bug: none
TBR: sky
Change-Id: Ic37d23ea66f53a107e1f968c096edd0b0414d314
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1670387
Commit-Queue: Peter Kasting <[email protected]>
Reviewed-by: Robert Sesek <[email protected]>
Cr-Commit-Position: refs/heads/master@{#671526}
diff --git a/chrome/browser/extensions/chrome_app_icon.cc b/chrome/browser/extensions/chrome_app_icon.cc
index c318eb05..a9c1993 100644
--- a/chrome/browser/extensions/chrome_app_icon.cc
+++ b/chrome/browser/extensions/chrome_app_icon.cc
@@ -28,7 +28,7 @@
 class RoundedCornersImageSource : public gfx::CanvasImageSource {
  public:
   explicit RoundedCornersImageSource(const gfx::ImageSkia& icon)
-      : gfx::CanvasImageSource(icon.size(), false), icon_(icon) {}
+      : gfx::CanvasImageSource(icon.size()), icon_(icon) {}
   ~RoundedCornersImageSource() override {}
 
  private: