Remove TraceOptions string based constructor.

content/browser/android/tracing_controller_android.cc

Index: content/browser/android/tracing_controller_android.cc
diff --git a/content/browser/android/tracing_controller_android.cc b/content/browser/android/tracing_controller_android.cc
index f89d472d9aeb48220ff0dd3ff3ec112faee56ace..42f4b0cb12b2d0c20909b3f4e616df7d3c7386be 100644
--- a/content/browser/android/tracing_controller_android.cc
+++ b/content/browser/android/tracing_controller_android.cc
@@ -35,15 +35,16 @@ bool TracingControllerAndroid::StartTracing(JNIEnv* env,
                                             jstring jtraceoptions) {
   std::string categories =
       base::android::ConvertJavaStringToUTF8(env, jcategories);
-  std::string trace_options =
-      base::android::ConvertJavaStringToUTF8(env, jtraceoptions);
+  base::debug::TraceOptions trace_options;
+  trace_options.SetFromString(
+      base::android::ConvertJavaStringToUTF8(env, jtraceoptions));
 
   // This log is required by adb_profile_chrome.py.
   LOG(WARNING) << "Logging performance trace to file";
 
   return TracingController::GetInstance()->EnableRecording(
       base::debug::CategoryFilter(categories),
-      base::debug::TraceOptions(trace_options),
+      trace_options,
       TracingController::EnableRecordingDoneCallback());
 }