Pass SkPaint instead of its alpha and mode in WebMediaPlayer::paint

content/renderer/media/html_video_element_capturer_source_unittest.cc

Index: content/renderer/media/html_video_element_capturer_source_unittest.cc
diff --git a/content/renderer/media/html_video_element_capturer_source_unittest.cc b/content/renderer/media/html_video_element_capturer_source_unittest.cc
index 2bb3292d9889edfb68f466ae60134cef734cd8ae..7a16b6a64112b17746eda8e522b211cc816d38d8 100644
--- a/content/renderer/media/html_video_element_capturer_source_unittest.cc
+++ b/content/renderer/media/html_video_element_capturer_source_unittest.cc
@@ -74,8 +74,7 @@ class MockWebMediaPlayer : public blink::WebMediaPlayer,
 
   void paint(blink::WebCanvas* canvas,
              const blink::WebRect& paint_rectangle,
-             unsigned char alpha,
-             SkXfermode::Mode mode) override {
+             SkPaint&) override {
     // We could fill in |canvas| with a meaningful pattern in ARGB and verify
     // that is correctly captured (as I420) by HTMLVideoElementCapturerSource
     // but I don't think that'll be easy/useful/robust, so just let go here.