WIP: Some cronet modifications for the AndroidGSA

components/cronet/android/org_chromium_net_UrlRequest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/cronet/android/org_chromium_net_UrlRequest.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/macros.h"
 #include "components/cronet/android/url_request_context_peer.h"
 #include "components/cronet/android/url_request_peer.h"
 #include "jni/UrlRequest_jni.h"
 #include "net/base/net_errors.h"
 #include "net/base/request_priority.h"
 
 using base::android::ConvertUTF8ToJavaString;
+using base::android::CheckException;
 
 namespace cronet {
 namespace {
 
 net::RequestPriority ConvertRequestPriority(jint request_priority) {
   switch (request_priority) {
     case REQUEST_PRIORITY_IDLE:
       return net::IDLE;
     case REQUEST_PRIORITY_LOWEST:
       return net::LOWEST;
@@ skipping 283 matching lines @@
 
   std::string name_string = base::android::ConvertJavaStringToUTF8(env, name);
   std::string value = request->GetHeader(name_string);
   if (!value.empty()) {
     return ConvertUTF8ToJavaString(env, value.c_str()).Release();
   } else {
     return NULL;
   }
 }
 
+static jobjectArray GetAllHeaders(JNIEnv* env,
+                                  jobject object,
+                                  jlong urlRequestPeer) {
+  URLRequestPeer* request = reinterpret_cast<URLRequestPeer*>(urlRequestPeer);
+  net::HttpRequestHeaders headers;
+  if (request == NULL || !request->GetFullRequestHeaders(&headers)) {
+    return NULL;
+  }
+
+  // TODO(miloslav): Better to just expose the size instead.
+  net::HttpRequestHeaders::Iterator counter(headers);
+  int count = 0;
+  while (counter.GetNext()) {
+    ++count;
+  }
+
+  jclass string_class = env->FindClass("java/lang/String");
+  jobjectArray result = env->NewObjectArray(2 * count, string_class, NULL);
+  CheckException(env);
+
+  net::HttpRequestHeaders::Iterator iterator(headers);
+  int index = 0;
+  while (iterator.GetNext()) {
+    DCHECK(index <= 2 * count - 2);
+    ScopedJavaLocalRef<jstring> name =
+        ConvertUTF8ToJavaString(env, iterator.name());
+    env->SetObjectArrayElement(result, index++, name.obj());
+
+    ScopedJavaLocalRef<jstring> value =
+        ConvertUTF8ToJavaString(env, iterator.value());
+    env->SetObjectArrayElement(result, index++, value.obj());
+  }
+  DCHECK(index == 2 * count);
+  return result;
+}
 }  // namespace cronet