Stack sampling profiler: set process and thread information

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 1d228153b2ce551ff20f76655e6a5fd9166d018c..3dc55b9ea6d00f0a571cd4bcbb528867f03f6a9f 100644
--- a/components/metrics/call_stack_profile_metrics_provider.cc
+++ b/components/metrics/call_stack_profile_metrics_provider.cc
@@ -289,6 +289,64 @@ void CopyProfileToProto(
       profile.sampling_period.InMilliseconds());
 }
 
+// Translates CallStackProfileParams's process to the corresponding
+// execution context Process.
+Process ToExecutionContextProcess(CallStackProfileParams::Process process) {
+  switch (process) {
+    case CallStackProfileParams::UNKNOWN_PROCESS:
+      return UNKNOWN_PROCESS;
+    case CallStackProfileParams::BROWSER_PROCESS:
+      return BROWSER_PROCESS;
+    case CallStackProfileParams::RENDERER_PROCESS:
+      return RENDERER_PROCESS;
+    case CallStackProfileParams::GPU_PROCESS:
+      return GPU_PROCESS;
+    case CallStackProfileParams::UTILITY_PROCESS:
+      return UTILITY_PROCESS;
+    case CallStackProfileParams::ZYGOTE_PROCESS:
+      return ZYGOTE_PROCESS;
+    case CallStackProfileParams::SANDBOX_HELPER_PROCESS:
+      return SANDBOX_HELPER_PROCESS;
+    case CallStackProfileParams::PPAPI_PLUGIN_PROCESS:
+      return PPAPI_PLUGIN_PROCESS;
+    case CallStackProfileParams::PPAPI_BROKER_PROCESS:
+      return PPAPI_BROKER_PROCESS;
+  }
+  NOTREACHED();
+  return UNKNOWN_PROCESS;
+}
+
+// Translates CallStackProfileParams's thread to the corresponding
+// SampledProfile TriggerEvent.
+Thread ToExecutionContextThread(CallStackProfileParams::Thread thread) {
+  switch (thread) {
+    case CallStackProfileParams::UNKNOWN_THREAD:
+      return UNKNOWN_THREAD;
+    case CallStackProfileParams::UI_THREAD:
+      return UI_THREAD;
+    case CallStackProfileParams::FILE_THREAD:
+      return FILE_THREAD;
+    case CallStackProfileParams::FILE_USER_BLOCKING_THREAD:
+      return FILE_USER_BLOCKING_THREAD;
+    case CallStackProfileParams::PROCESS_LAUNCHER_THREAD:
+      return PROCESS_LAUNCHER_THREAD;
+    case CallStackProfileParams::CACHE_THREAD:
+      return CACHE_THREAD;
+    case CallStackProfileParams::IO_THREAD:
+      return IO_THREAD;
+    case CallStackProfileParams::DB_THREAD:
+      return DB_THREAD;
+    case CallStackProfileParams::GPU_MAIN_THREAD:
+      return GPU_MAIN_THREAD;
+    case CallStackProfileParams::RENDER_THREAD:
+      return RENDER_THREAD;
+    case CallStackProfileParams::UTILITY_THREAD:
+      return UTILITY_THREAD;
+  }
+  NOTREACHED();
+  return UNKNOWN_THREAD;
+}
+
 // Translates CallStackProfileParams's trigger to the corresponding
 // SampledProfile TriggerEvent.
 SampledProfile::TriggerEvent ToSampledProfileTriggerEvent(
@@ -296,16 +354,12 @@ SampledProfile::TriggerEvent ToSampledProfileTriggerEvent(
   switch (trigger) {
     case CallStackProfileParams::UNKNOWN:
       return SampledProfile::UNKNOWN_TRIGGER_EVENT;
-      break;
     case CallStackProfileParams::PROCESS_STARTUP:
       return SampledProfile::PROCESS_STARTUP;
-      break;
     case CallStackProfileParams::JANKY_TASK:
       return SampledProfile::JANKY_TASK;
-      break;
     case CallStackProfileParams::THREAD_HUNG:
       return SampledProfile::THREAD_HUNG;
-      break;
   }
   NOTREACHED();
   return SampledProfile::UNKNOWN_TRIGGER_EVENT;
@@ -367,6 +421,10 @@ void CallStackProfileMetricsProvider::ProvideGeneralMetrics(
     for (const StackSamplingProfiler::CallStackProfile& profile :
              profiles_state.profiles) {
       SampledProfile* sampled_profile = uma_proto->add_sampled_profile();
+      sampled_profile->set_process(ToExecutionContextProcess(
+          profiles_state.params.process));
+      sampled_profile->set_thread(ToExecutionContextThread(
+          profiles_state.params.thread));
       sampled_profile->set_trigger_event(ToSampledProfileTriggerEvent(
           profiles_state.params.trigger));
       CopyProfileToProto(profile, profiles_state.params.ordering_spec,