Refactor CallStackProfile::Params into base/ for use over IPC.

components/metrics/call_stack_profile_metrics_provider.h

Index: components/metrics/call_stack_profile_metrics_provider.h
diff --git a/components/metrics/call_stack_profile_metrics_provider.h b/components/metrics/call_stack_profile_metrics_provider.h
index d368c99c4ace94222b512b746d79bb3b49db290c..0f9c00590e3987d6b203920d1564a2ce84c8d6da 100644
--- a/components/metrics/call_stack_profile_metrics_provider.h
+++ b/components/metrics/call_stack_profile_metrics_provider.h
@@ -8,6 +8,7 @@
 #include <vector>
 
 #include "base/memory/ref_counted.h"
+#include "base/metrics/call_stack_profile_params.h"
 #include "base/profiler/stack_sampling_profiler.h"
 #include "components/metrics/metrics_provider.h"
 
@@ -25,24 +26,6 @@ class CallStackProfileMetricsProvider : public MetricsProvider {
     THREAD_HUNG
   };
 
-  // Parameters to pass back to the metrics provider.
-  struct Params {
-    explicit Params(Trigger trigger);
-    Params(Trigger trigger, bool preserve_sample_ordering);
-
-    // The triggering event.
-    Trigger trigger;
-
-    // True if sample ordering is important and should be preserved when the
-    // associated profiles are compressed. This should only be set to true if
-    // the intended use of the requires that the sequence of call stacks within
-    // a particular profile be preserved. The default value of false provides
-    // better compression of the encoded profile and is sufficient for the
-    // typical use case of recording profiles for stack frequency analysis in
-    // aggregate.
-    bool preserve_sample_ordering;
-  };
-
   CallStackProfileMetricsProvider();
   ~CallStackProfileMetricsProvider() override;
 
@@ -51,7 +34,7 @@ class CallStackProfileMetricsProvider : public MetricsProvider {
   // StackSamplingProfiler, and should not be reused between
   // StackSamplingProfilers. This function may be called on any thread.
   static base::StackSamplingProfiler::CompletedCallback GetProfilerCallback(
-      const Params& params);
+      const base::CallStackProfileParams& params);
 
   // MetricsProvider:
   void OnRecordingEnabled() override;