[vr] Bail on unhandled code points.

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

Index: chrome/browser/android/vr_shell/textures/ui_texture.h
diff --git a/chrome/browser/android/vr_shell/textures/ui_texture.h b/chrome/browser/android/vr_shell/textures/ui_texture.h
index ca2e52ec38b535794c443636d71c76270772978f..0bde0005822998ef5d5519c89a65d25d4ad3ee6a 100644
--- a/chrome/browser/android/vr_shell/textures/ui_texture.h
+++ b/chrome/browser/android/vr_shell/textures/ui_texture.h
@@ -78,7 +78,10 @@ class UiTexture {
 
   static bool IsRTL();
   static gfx::FontList GetDefaultFontList(int size);
-  static gfx::FontList GetFontList(int size, base::string16 text);
+  static bool GetFontList(int size,
+                          base::string16 text,
+                          gfx::FontList* font_list);
+  static void SetForceFontFallbackFailureForTesting(bool force);
 
  private:
   bool dirty_ = true;