Moving src/webrtc into src/.

In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}

rtc_tools/force_mic_volume_max/force_mic_volume_max.cc

@@ -0,0 +1,58 @@
+/*
+ *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+// This utility will portably force the volume of the default microphone to max.
+
+#include <stdio.h>
+
+#include "webrtc/modules/audio_device/include/audio_device.h"
+
+using webrtc::AudioDeviceModule;
+
+#if defined(_WIN32)
+#define DEFAULT_INPUT_DEVICE (AudioDeviceModule::kDefaultCommunicationDevice)
+#else
+#define DEFAULT_INPUT_DEVICE (0)
+#endif
+
+int main(int /*argc*/, char** /*argv*/) {
+  // Create and initialize the ADM.
+  rtc::scoped_refptr<AudioDeviceModule> adm(
+      AudioDeviceModule::Create(1, AudioDeviceModule::kPlatformDefaultAudio));
+  if (!adm.get()) {
+    fprintf(stderr, "Failed to create Audio Device Module.\n");
+    return 1;
+  }
+  if (adm->Init() != 0) {
+    fprintf(stderr, "Failed to initialize Audio Device Module.\n");
+    return 1;
+  }
+  if (adm->SetRecordingDevice(DEFAULT_INPUT_DEVICE) != 0) {
+    fprintf(stderr, "Failed to set the default input device.\n");
+    return 1;
+  }
+  if (adm->InitMicrophone() != 0) {
+    fprintf(stderr, "Failed to to initialize the microphone.\n");
+    return 1;
+  }
+
+  // Set mic volume to max.
+  uint32_t max_vol = 0;
+  if (adm->MaxMicrophoneVolume(&max_vol) != 0) {
+    fprintf(stderr, "Failed to get max volume.\n");
+    return 1;
+  }
+  if (adm->SetMicrophoneVolume(max_vol) != 0) {
+    fprintf(stderr, "Failed to set mic volume.\n");
+    return 1;
+  }
+
+  return 0;
+}