Add option for SKP capture without reencoding images

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index b4d07233e8ccee4b0c9d6a7896e08e37ed87c4a6..3e50fd4d2b560981edbdbce3a93b05e65e1975cd 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -781,6 +781,12 @@ const char kSitePerProcess[]                = "site-per-process";
 // TODO(gab): Get rid of this switch entirely.
 const char kSkipGpuDataLoading[]            = "skip-gpu-data-loading";
 
+// Skips reencoding bitmaps as PNGs when the encoded data is unavailable
+// during SKP capture.  This allows for obtaining an accurate sample of
+// the types of images on the web, rather than being weighted towards PNGs
+// that we have encoded ourselves.
+const char kSkipReencodingOnSKPCapture[]    = "skip-reencoding-on-skp-capture";
+
 // Specifies if the browser should start in fullscreen mode, like if the user
 // had pressed F11 right after startup.
 const char kStartFullscreen[] = "start-fullscreen";