Fixed pass-by-value to pass-by-reference

chrome/renderer/chrome_render_view_observer.cc

Index: chrome/renderer/chrome_render_view_observer.cc
diff --git a/chrome/renderer/chrome_render_view_observer.cc b/chrome/renderer/chrome_render_view_observer.cc
index fffdbec576771f463de060dc76e7193bf39e4c9c..6cfa1ea4ba4a2fa8e8dc6eaa3a69a111196b4b74 100644
--- a/chrome/renderer/chrome_render_view_observer.cc
+++ b/chrome/renderer/chrome_render_view_observer.cc
@@ -177,7 +177,7 @@ static bool PaintViewIntoCanvas(WebView* view,
 // bitmap are all the same brightness.
 static double CalculateBoringScore(SkBitmap* bitmap) {
   int histogram[256] = {0};
-  color_utils::BuildLumaHistogram(bitmap, histogram);
+  color_utils::BuildLumaHistogram(*bitmap, histogram);
 
   int color_count = *std::max_element(histogram, histogram + 256);
   int pixel_count = bitmap->width() * bitmap->height();