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/RTCIntervalRange.mm

@@ -0,0 +1,50 @@
+/*
+ *  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 "RTCIntervalRange+Private.h"
+
+#include "webrtc/rtc_base/checks.h"
+
+@implementation RTCIntervalRange
+
+@synthesize min = _min;
+@synthesize max = _max;
+
+- (instancetype)init {
+  return [self initWithMin:0 max:0];
+}
+
+- (instancetype)initWithMin:(NSInteger)min
+                        max:(NSInteger)max {
+  RTC_DCHECK_LE(min, max);
+  if (self = [super init]) {
+    _min = min;
+    _max = max;
+  }
+  return self;
+}
+
+- (instancetype)initWithNativeIntervalRange:(const rtc::IntervalRange &)config {
+  return [self initWithMin:config.min() max:config.max()];
+}
+
+- (NSString *)description {
+  return [NSString stringWithFormat:@"[%ld, %ld]", (long)_min, (long)_max];
+}
+
+#pragma mark - Private
+
+- (std::unique_ptr<rtc::IntervalRange>)nativeIntervalRange {
+  std::unique_ptr<rtc::IntervalRange> nativeIntervalRange(
+      new rtc::IntervalRange((int)_min, (int)_max));
+  return nativeIntervalRange;
+}
+
+@end