Prevent duplicate navigation to debug URLs from Telemetry.

content/browser/frame_host/debug_urls.cc

Index: content/browser/frame_host/debug_urls.cc
diff --git a/content/browser/frame_host/debug_urls.cc b/content/browser/frame_host/debug_urls.cc
index ae454ae64a73f25687a0f72cdae5804771ea7e11..14ce8ceb648c06205cdc7d90b12198717d89b676 100644
--- a/content/browser/frame_host/debug_urls.cc
+++ b/content/browser/frame_host/debug_urls.cc
@@ -6,9 +6,11 @@
 
 #include <vector>
 
+#include "base/command_line.h"
 #include "base/debug/asan_invalid_access.h"
 #include "base/debug/profiler.h"
 #include "base/strings/utf_string_conversions.h"
+#include "cc/base/switches.h"
 #include "content/browser/gpu/gpu_process_host_ui_shim.h"
 #include "content/browser/ppapi_plugin_process_host.h"
 #include "content/public/browser/browser_thread.h"
@@ -106,8 +108,14 @@ bool HandleAsanDebugURL(const GURL& url) {
 }  // namespace
 
 bool HandleDebugURL(const GURL& url, PageTransition transition) {
-  // Ensure that the user explicitly navigated to this URL.
-  if (!(transition & PAGE_TRANSITION_FROM_ADDRESS_BAR))
+  // Ensure that the user explicitly navigated to this URL, unless
+  // kEnableGpuBenchmarking is enabled by Telemetry.
+  bool is_telemetry_navigation = CommandLine::ForCurrentProcess()->HasSwitch(
+                                     cc::switches::kEnableGpuBenchmarking) &&
+                                 (transition & PAGE_TRANSITION_TYPED);
+
+  if (!(transition & PAGE_TRANSITION_FROM_ADDRESS_BAR) &&
+      !is_telemetry_navigation)
     return false;
 
   // NOTE: when you add handling of any URLs to this function, also