Revert of [Fallback icons] Change "explicit flow" interface so color hex strings don't use "#".

chrome/common/favicon/fallback_icon_url_parser.h

Index: chrome/common/favicon/fallback_icon_url_parser.h
diff --git a/chrome/common/favicon/fallback_icon_url_parser.h b/chrome/common/favicon/fallback_icon_url_parser.h
index 93d413908b833e4a4d3db77dc02751ab11cbc9e5..12a068f4e928e29b53fdab4ea657c7dc166cb44d 100644
--- a/chrome/common/favicon/fallback_icon_url_parser.h
+++ b/chrome/common/favicon/fallback_icon_url_parser.h
@@ -38,8 +38,8 @@
                          int *size,
                          favicon_base::FallbackIconStyle* style);
 
-  // Helper to parse color string (e.g., "red", "#f00", "#aB0137"). On success,
-  // returns true and writes te result to |*color|.
+  // Helper to parse color string (e.g., "red", "#f00", "#fF0000"). Returns true
+  // on success.
   static bool ParseColor(const std::string& color_str, SkColor* color);
 
   friend class FallbackIconUrlParserTest;