Obj-C SDK Cleanup

This CL separates the files under sdk/objc into logical directories, replacing
the previous file layout under Framework/.

A long term goal is to have some system set up to generate the files under
sdk/objc/api (the PeerConnection API wrappers) from the C++ code. In the shorter
term the goal is to abstract out shared concepts from these classes in order to
make them as uniform as possible.

The separation into base/, components/, and helpers/ are to differentiate between
the base layer's common protocols, various utilities and the actual platform
specific components.

The old directory layout that resembled a framework's internal layout is not
necessary, since it is generated by the framework target when building it.

Bug: webrtc:9627
Change-Id: Ib084fd83f050ae980649ca99e841f4fb0580bd8f
Reviewed-on: https://webrtc-review.googlesource.com/94142
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24493}

sdk/objc/unittests/RTCPeerConnectionFactoryBuilderTest.mm

@@ -0,0 +1,93 @@
+/*
+ *  Copyright 2015 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 <Foundation/Foundation.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+#import <OCMock/OCMock.h>
+#ifdef __cplusplus
+}
+#endif
+#import "api/peerconnection/RTCPeerConnectionFactory+Native.h"
+#import "api/peerconnection/RTCPeerConnectionFactoryBuilder+DefaultComponents.h"
+#import "api/peerconnection/RTCPeerConnectionFactoryBuilder.h"
+
+#include "api/audio_codecs/builtin_audio_decoder_factory.h"
+#include "api/audio_codecs/builtin_audio_encoder_factory.h"
+#include "api/video_codecs/video_decoder_factory.h"
+#include "api/video_codecs/video_encoder_factory.h"
+#include "modules/audio_device/include/audio_device.h"
+#include "modules/audio_processing/include/audio_processing.h"
+
+#include "rtc_base/gunit.h"
+#include "rtc_base/system/unused.h"
+
+@interface RTCPeerConnectionFactoryBuilderTest : NSObject
+- (void)testBuilder;
+- (void)testDefaultComponentsBuilder;
+@end
+
+@implementation RTCPeerConnectionFactoryBuilderTest
+
+- (void)testBuilder {
+  id factoryMock = OCMStrictClassMock([RTCPeerConnectionFactory class]);
+  OCMExpect([factoryMock alloc]).andReturn(factoryMock);
+#ifdef HAVE_NO_MEDIA
+  RTC_UNUSED([[[factoryMock expect] andReturn:factoryMock] initWithNoMedia]);
+#else
+  RTC_UNUSED([[[[factoryMock expect] andReturn:factoryMock] ignoringNonObjectArgs]
+      initWithNativeAudioEncoderFactory:nullptr
+              nativeAudioDecoderFactory:nullptr
+              nativeVideoEncoderFactory:nullptr
+              nativeVideoDecoderFactory:nullptr
+                      audioDeviceModule:nullptr
+                  audioProcessingModule:nullptr]);
+#endif
+  RTCPeerConnectionFactoryBuilder* builder = [[RTCPeerConnectionFactoryBuilder alloc] init];
+  RTCPeerConnectionFactory* peerConnectionFactory = [builder createPeerConnectionFactory];
+  EXPECT_TRUE(peerConnectionFactory != nil);
+  OCMVerifyAll(factoryMock);
+}
+
+- (void)testDefaultComponentsBuilder {
+  id factoryMock = OCMStrictClassMock([RTCPeerConnectionFactory class]);
+  OCMExpect([factoryMock alloc]).andReturn(factoryMock);
+#ifdef HAVE_NO_MEDIA
+  RTC_UNUSED([[[factoryMock expect] andReturn:factoryMock] initWithNoMedia]);
+#else
+  RTC_UNUSED([[[[factoryMock expect] andReturn:factoryMock] ignoringNonObjectArgs]
+      initWithNativeAudioEncoderFactory:nullptr
+              nativeAudioDecoderFactory:nullptr
+              nativeVideoEncoderFactory:nullptr
+              nativeVideoDecoderFactory:nullptr
+                      audioDeviceModule:nullptr
+                  audioProcessingModule:nullptr]);
+#endif
+  RTCPeerConnectionFactoryBuilder* builder = [RTCPeerConnectionFactoryBuilder defaultBuilder];
+  RTCPeerConnectionFactory* peerConnectionFactory = [builder createPeerConnectionFactory];
+  EXPECT_TRUE(peerConnectionFactory != nil);
+  OCMVerifyAll(factoryMock);
+}
+@end
+
+TEST(RTCPeerConnectionFactoryBuilderTest, BuilderTest) {
+  @autoreleasepool {
+    RTCPeerConnectionFactoryBuilderTest* test = [[RTCPeerConnectionFactoryBuilderTest alloc] init];
+    [test testBuilder];
+  }
+}
+
+TEST(RTCPeerConnectionFactoryBuilderTest, DefaultComponentsBuilderTest) {
+  @autoreleasepool {
+    RTCPeerConnectionFactoryBuilderTest* test = [[RTCPeerConnectionFactoryBuilderTest alloc] init];
+    [test testDefaultComponentsBuilder];
+  }
+}