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

components/metrics/call_stack_profile_metrics_provider.cc

Index: components/metrics/call_stack_profile_metrics_provider.cc
diff --git a/components/metrics/call_stack_profile_metrics_provider.cc b/components/metrics/call_stack_profile_metrics_provider.cc
index b4d6afe5719f70bffeb09293208a20dd970299c9..56f03c7da364236b9b1ba7dc43458ac4971b4d0a 100644
--- a/components/metrics/call_stack_profile_metrics_provider.cc
+++ b/components/metrics/call_stack_profile_metrics_provider.cc
@@ -35,13 +35,13 @@ namespace {
 // A set of profiles and the CallStackProfileMetricsProvider state associated
 // with them.
 struct ProfilesState {
-  ProfilesState(const CallStackProfileMetricsProvider::Params& params,
+  ProfilesState(const base::CallStackProfileParams& params,
                 const base::StackSamplingProfiler::CallStackProfiles& profiles,
                 base::TimeTicks start_timestamp);
 
   // The metrics-related parameters provided to
   // CallStackProfileMetricsProvider::GetProfilerCallback().
-  CallStackProfileMetricsProvider::Params params;
+  base::CallStackProfileParams params;
 
   // The call stack profiles collected by the profiler.
   base::StackSamplingProfiler::CallStackProfiles profiles;
@@ -54,13 +54,10 @@ struct ProfilesState {
 };
 
 ProfilesState::ProfilesState(
-    const CallStackProfileMetricsProvider::Params& params,
+    const base::CallStackProfileParams& params,
     const base::StackSamplingProfiler::CallStackProfiles& profiles,
     base::TimeTicks start_timestamp)
-    : params(params),
-      profiles(profiles),
-      start_timestamp(start_timestamp) {
-}
+    : params(params), profiles(profiles), start_timestamp(start_timestamp) {}
 
 // PendingProfiles ------------------------------------------------------------
 
@@ -186,7 +183,7 @@ PendingProfiles::~PendingProfiles() {}
 // Invoked on the profiler's thread. Provides the profiles to PendingProfiles to
 // append, if the collecting state allows.
 void ReceiveCompletedProfiles(
-    const CallStackProfileMetricsProvider::Params& params,
+    const base::CallStackProfileParams& params,
     base::TimeTicks start_timestamp,
     const StackSamplingProfiler::CallStackProfiles& profiles) {
   PendingProfiles::GetInstance()->CollectProfilesIfCollectionEnabled(
@@ -289,18 +286,18 @@ void CopyProfileToProto(
 // Translates CallStackProfileMetricsProvider's trigger to the corresponding
 // SampledProfile TriggerEvent.
 SampledProfile::TriggerEvent ToSampledProfileTriggerEvent(
-    CallStackProfileMetricsProvider::Trigger trigger) {
+    base::CallStackProfileParams::Trigger trigger) {
   switch (trigger) {
-    case CallStackProfileMetricsProvider::UNKNOWN:
+    case base::CallStackProfileParams::UNKNOWN:
       return SampledProfile::UNKNOWN_TRIGGER_EVENT;
       break;
-    case CallStackProfileMetricsProvider::PROCESS_STARTUP:
+    case base::CallStackProfileParams::PROCESS_STARTUP:
       return SampledProfile::PROCESS_STARTUP;
       break;
-    case CallStackProfileMetricsProvider::JANKY_TASK:
+    case base::CallStackProfileParams::JANKY_TASK:
       return SampledProfile::JANKY_TASK;
       break;
-    case CallStackProfileMetricsProvider::THREAD_HUNG:
+    case base::CallStackProfileParams::THREAD_HUNG:
       return SampledProfile::THREAD_HUNG;
       break;
   }
@@ -310,20 +307,6 @@ SampledProfile::TriggerEvent ToSampledProfileTriggerEvent(
 
 }  // namespace
 
-// CallStackProfileMetricsProvider::Params ------------------------------------
-
-CallStackProfileMetricsProvider::Params::Params(
-    CallStackProfileMetricsProvider::Trigger trigger)
-    : Params(trigger, false) {
-}
-
-CallStackProfileMetricsProvider::Params::Params(
-    CallStackProfileMetricsProvider::Trigger trigger,
-    bool preserve_sample_ordering)
-    : trigger(trigger),
-      preserve_sample_ordering(preserve_sample_ordering) {
-}
-
 // CallStackProfileMetricsProvider --------------------------------------------
 
 const char CallStackProfileMetricsProvider::kFieldTrialName[] =
@@ -339,7 +322,8 @@ CallStackProfileMetricsProvider::~CallStackProfileMetricsProvider() {
 
 // This function can be invoked on an abitrary thread.
 base::StackSamplingProfiler::CompletedCallback
-CallStackProfileMetricsProvider::GetProfilerCallback(const Params& params) {
+CallStackProfileMetricsProvider::GetProfilerCallback(
+    const base::CallStackProfileParams& params) {
   // Ignore the profiles if the collection is disabled. If the collection state
   // changes while collecting, this will be detected by the callback and
   // profiles will be ignored at that point.