Fix/Add content_unittests to work for the code behind --enable-audio-track-processing

content/renderer/media/mock_media_constraint_factory.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 "base/strings/string_number_conversions.h"
+#include "base/strings/utf_string_conversions.h"
+#include "content/renderer/media/mock_media_constraint_factory.h"
+#include "third_party/libjingle/source/talk/app/webrtc/mediaconstraintsinterface.h"
+
+namespace content {
+
+MockMediaConstraintFactory::MockMediaConstraintFactory() {
+}
+
+MockMediaConstraintFactory::~MockMediaConstraintFactory() {
+}
+
+blink::WebMediaConstraints
+MockMediaConstraintFactory::CreateWebMediaConstraints() {
+  blink::WebVector<blink::WebMediaConstraint> mandatory(mandatory_);
+  blink::WebVector<blink::WebMediaConstraint> optional(optional_);
+  blink::WebMediaConstraints constraints;
+  constraints.initialize(optional, mandatory);
+  return constraints;
+}
+
+void MockMediaConstraintFactory::AddMandatory(const std::string& key,
+                                              int value) {
+  mandatory_.push_back(blink::WebMediaConstraint(base::UTF8ToUTF16(key),
+                                                 base::IntToString16(value)));
+}
+
+void MockMediaConstraintFactory::AddMandatory(const std::string& key,
+                                              double value) {
+  mandatory_.push_back(blink::WebMediaConstraint(
+      base::UTF8ToUTF16(key),
+      base::UTF8ToUTF16(base::DoubleToString(value))));
+}
+
+void MockMediaConstraintFactory::AddOptional(const std::string& key,
+                                             int value) {
+  optional_.push_back(blink::WebMediaConstraint(base::UTF8ToUTF16(key),
+                                                base::IntToString16(value)));
+}
+
+void MockMediaConstraintFactory::AddOptional(const std::string& key,
+                                             double value) {
+  optional_.push_back(blink::WebMediaConstraint(
+      base::UTF8ToUTF16(key),
+      base::UTF8ToUTF16(base::DoubleToString(value))));
+}
+
+void MockMediaConstraintFactory::DisableDefaultAudioConstraints() {
+  static const char* kDefaultAudioConstraints[] = {
+      webrtc::MediaConstraintsInterface::kEchoCancellation,
+      webrtc::MediaConstraintsInterface::kExperimentalEchoCancellation,
+      webrtc::MediaConstraintsInterface::kAutoGainControl,
+      webrtc::MediaConstraintsInterface::kExperimentalAutoGainControl,
+      webrtc::MediaConstraintsInterface::kNoiseSuppression,
+      webrtc::MediaConstraintsInterface::kHighpassFilter,
+      webrtc::MediaConstraintsInterface::kTypingNoiseDetection,
+      webrtc::MediaConstraintsInterface::kExperimentalNoiseSuppression
+  };
+  MockMediaConstraintFactory factory;
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kDefaultAudioConstraints); ++i) {
+    AddMandatory(kDefaultAudioConstraints[i], false);
+  }
+}
+
+}  // namespace content