Upstreaming SpdyProxy-related switches, OTR logic, and histograms

chrome/renderer/page_load_histograms.cc

Index: chrome/renderer/page_load_histograms.cc
diff --git a/chrome/renderer/page_load_histograms.cc b/chrome/renderer/page_load_histograms.cc
index 2b7c026baf2c80efaca004d3e7b25446f8518985..969c26a065d34256f79acc7bd94f3fdf0a477d13 100644
--- a/chrome/renderer/page_load_histograms.cc
+++ b/chrome/renderer/page_load_histograms.cc
@@ -22,6 +22,11 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURLResponse.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
+#if defined(OS_ANDROID)
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+#endif
+
 using WebKit::WebDataSource;
 using WebKit::WebFrame;
 using WebKit::WebPerformance;
@@ -351,6 +356,17 @@ void PageLoadHistograms::Dump(WebFrame* frame) {
     }
   }
 
+#if defined(OS_ANDROID)
+  if (document_state->was_fetched_via_proxy() &&
+      document_state->was_fetched_via_spdy() &&
+      CommandLine::ForCurrentProcess()->HasSwitch(switches::kSpdyProxyOrigin)) {
+    UMA_HISTOGRAM_ENUMERATION(
+        "PLT.Abandoned_SpdyProxy", abandoned_page ? 1 : 0, 2);
+    PLT_HISTOGRAM("PLT.BeginToFinishDoc_SpdyProxy", begin_to_finish_doc);
+    PLT_HISTOGRAM("PLT.BeginToFinish_SpdyProxy", begin_to_finish_all_loads);
+  }
+#endif
+
   // Histograms to determine if prefetch & prerender has an impact on PLT.
   static const bool prefetching_fieldtrial =
       base::FieldTrialList::TrialExists("Prefetch");