RenderText: Allow strike-through line thickness to be customized.

chrome/browser/android/vr_shell/textures/render_text_wrapper.h

Index: chrome/browser/android/vr_shell/textures/render_text_wrapper.h
diff --git a/chrome/browser/android/vr_shell/textures/render_text_wrapper.h b/chrome/browser/android/vr_shell/textures/render_text_wrapper.h
index 2c2e5fbe8c79aa8a6dc7df15842f58e8755cece9..c959f4d62991bd804df1eb2755d9b877608a43c4 100644
--- a/chrome/browser/android/vr_shell/textures/render_text_wrapper.h
+++ b/chrome/browser/android/vr_shell/textures/render_text_wrapper.h
@@ -25,6 +25,8 @@ class RenderTextWrapper {
                           bool value,
                           const gfx::Range& range);
 
+  virtual void SetStrikeThicknessFactor(SkScalar factor);
+
  private:
   gfx::RenderText* render_text_ = nullptr;