Implement plumbing for variations in feedback reports.

components/variations/android/variations_associated_data_android.cc

Index: components/variations/android/variations_associated_data_android.cc
diff --git a/components/variations/android/variations_associated_data_android.cc b/components/variations/android/variations_associated_data_android.cc
index 0693f20cbfec64acb5e9597f90cbd7d9493d8919..42e5ae188759c5cd26621a4504cdecae32a5d5d0 100644
--- a/components/variations/android/variations_associated_data_android.cc
+++ b/components/variations/android/variations_associated_data_android.cc
@@ -8,6 +8,7 @@
 
 #include "base/android/jni_string.h"
 #include "components/variations/variations_associated_data.h"
+#include "components/variations/variations_http_header_provider.h"
 #include "jni/VariationsAssociatedData_jni.h"
 
 using base::android::ConvertJavaStringToUTF8;
@@ -29,6 +30,14 @@ ScopedJavaLocalRef<jstring> GetVariationParamValue(
   return ConvertUTF8ToJavaString(env, param_value);
 }
 
+ScopedJavaLocalRef<jstring> GetFeedbackVariations(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz) {
+  const std::string values =
+      VariationsHttpHeaderProvider::GetInstance()->GetVariationsString();
+  return ConvertUTF8ToJavaString(env, values);
+}
+
 bool RegisterVariationsAssociatedData(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }