Slow Reports: Add tracing category interesting for serviceworkers

R=etienneb@chromium.org

Change-Id: Ied7a5a0dd3316f105dca5d7a946081b7f08f24b2
Reviewed-on: https://chromium-review.googlesource.com/c/1323704Reviewed-by: Etienne Bergeron <etienneb@chromium.org>
Commit-Queue: oysteine <oysteine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606556}

content/browser/tracing/background_tracing_config_impl.cc

@@ -37,6 +37,7 @@ const char kConfigCategoryBenchmarkExecutionMetric[] =
     "BENCHMARK_EXECUTION_METRIC";
 const char kConfigCategoryBenchmarkNavigation[] = "BENCHMARK_NAVIGATION";
 const char kConfigCategoryBenchmarkRenderers[] = "BENCHMARK_RENDERERS";
+const char kConfigCategoryBenchmarkServiceworker[] = "BENCHMARK_SERVICEWORKER";
 const char kConfigCategoryBlinkStyle[] = "BLINK_STYLE";
 
 }  // namespace
@@ -73,6 +74,8 @@ std::string BackgroundTracingConfigImpl::CategoryPresetToString(
       return kConfigCategoryBenchmarkNavigation;
     case BackgroundTracingConfigImpl::BENCHMARK_RENDERERS:
       return kConfigCategoryBenchmarkRenderers;
+    case BackgroundTracingConfigImpl::BENCHMARK_SERVICEWORKER:
+      return kConfigCategoryBenchmarkServiceworker;
     case BackgroundTracingConfigImpl::BLINK_STYLE:
       return kConfigCategoryBlinkStyle;
     case BackgroundTracingConfigImpl::CATEGORY_PRESET_UNSET:
@@ -140,6 +143,11 @@ bool BackgroundTracingConfigImpl::StringToCategoryPreset(
     return true;
   }
 
+  if (category_preset_string == kConfigCategoryBenchmarkServiceworker) {
+    *category_preset = BackgroundTracingConfigImpl::BENCHMARK_SERVICEWORKER;
+    return true;
+  }
+
   if (category_preset_string == kConfigCategoryBlinkStyle) {
     *category_preset = BackgroundTracingConfigImpl::BLINK_STYLE;
     return true;

content/browser/tracing/background_tracing_config_impl.h

@@ -39,6 +39,7 @@ class CONTENT_EXPORT BackgroundTracingConfigImpl
     BENCHMARK_EXECUTION_METRIC,
     BENCHMARK_NAVIGATION,
     BENCHMARK_RENDERERS,
+    BENCHMARK_SERVICEWORKER,
     BLINK_STYLE
   };
 

content/browser/tracing/background_tracing_manager_impl.cc

@@ -692,6 +692,12 @@ TraceConfig BackgroundTracingManagerImpl::GetConfigForCategoryPreset(
           "disabled-by-default-renderer.scheduler,"
           "disabled-by-default-system_stats,disabled-by-default-cpu_profiler",
           record_mode);
+    case BackgroundTracingConfigImpl::CategoryPreset::BENCHMARK_SERVICEWORKER:
+      return TraceConfig(
+          "benchmark,toplevel,ipc,base,ServiceWorker,CacheStorage,Blob,"
+          "loader,loading,navigation,blink.user_timing,"
+          "disabled-by-default-network",
+          record_mode);
     case BackgroundTracingConfigImpl::CategoryPreset::BLINK_STYLE:
       return TraceConfig("blink_style", record_mode);
 
@@ -707,7 +713,6 @@ TraceConfig BackgroundTracingManagerImpl::GetConfigForCategoryPreset(
       config.ResetMemoryDumpConfig(memory_config);
       return config;
     }
-
     case BackgroundTracingConfigImpl::CategoryPreset::CATEGORY_PRESET_UNSET:
       NOTREACHED();
   }