Stack sampling profiler: run the profiler in the GPU process on trunk builds

chrome/browser/chrome_browser_main.h

Index: chrome/browser/chrome_browser_main.h
diff --git a/chrome/browser/chrome_browser_main.h b/chrome/browser/chrome_browser_main.h
index 883813f1aacf58e08dd1ed53d14a3cc5ac038436..809b2b6b6f4962ce50dbcfe38d150c6f72bdcdf8 100644
--- a/chrome/browser/chrome_browser_main.h
+++ b/chrome/browser/chrome_browser_main.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
 
 #include <memory>
+#include <vector>
 
 #include "base/macros.h"
 #include "base/metrics/field_trial.h"
@@ -156,9 +157,6 @@ class ChromeBrowserMainParts : public content::BrowserMainParts {
   // Parts are deleted in the inverse order they are added.
   std::vector<ChromeBrowserMainExtraParts*> chrome_extra_parts_;
 
-  // The configuration to use for the stack sampling profiler below.
-  StackSamplingConfiguration sampling_profiler_config_;
-
   // A profiler that periodically samples stack traces. Used to sample startup
   // behavior.
   base::StackSamplingProfiler sampling_profiler_;