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}

sdk/objc/Framework/Classes/PeerConnection/RTCVideoCodec.mm

@@ -0,0 +1,80 @@
+/*
+ *  Copyright 2017 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.
+ */
+
+#import "WebRTC/RTCVideoCodec.h"
+
+#import "NSString+StdString.h"
+#import "RTCVideoCodec+Private.h"
+#import "WebRTC/RTCVideoCodecFactory.h"
+
+@implementation RTCVideoCodecInfo
+
+@synthesize payload = _payload;
+@synthesize name = _name;
+@synthesize parameters = _parameters;
+
+- (instancetype)initWithName:(NSString *)name
+                  parameters:(nullable NSDictionary<NSString *, NSString *> *)parameters {
+  if (self = [super init]) {
+    _payload = 0;
+    _name = name;
+    _parameters = (parameters ? parameters : @{});
+  }
+
+  return self;
+}
+
+- (instancetype)initWithNativeVideoCodec:(cricket::VideoCodec)videoCodec {
+  NSMutableDictionary *params = [NSMutableDictionary dictionary];
+  for (auto it = videoCodec.params.begin(); it != videoCodec.params.end(); ++it) {
+    [params setObject:[NSString stringForStdString:it->second]
+               forKey:[NSString stringForStdString:it->first]];
+  }
+  return [self initWithPayload:videoCodec.id
+                          name:[NSString stringForStdString:videoCodec.name]
+                    parameters:params];
+}
+
+- (instancetype)initWithPayload:(NSInteger)payload
+                           name:(NSString *)name
+                     parameters:(NSDictionary<NSString *, NSString *> *)parameters {
+  if (self = [self initWithName:name parameters:parameters]) {
+    _payload = payload;
+  }
+
+  return self;
+}
+
+- (cricket::VideoCodec)nativeVideoCodec {
+  cricket::VideoCodec codec([NSString stdStringForString:_name]);
+  for (NSString *paramKey in _parameters.allKeys) {
+    codec.SetParam([NSString stdStringForString:paramKey],
+                   [NSString stdStringForString:_parameters[paramKey]]);
+  }
+
+  return codec;
+}
+
+@end
+
+@implementation RTCVideoEncoderQpThresholds
+
+@synthesize low = _low;
+@synthesize high = _high;
+
+- (instancetype)initWithThresholdsLow:(NSInteger)low high:(NSInteger)high {
+  if (self = [super init]) {
+    _low = low;
+    _high = high;
+  }
+  return self;
+}
+
+@end