Revert of Rename AppRTCDemo on Android and iOS to AppRTCMobile (patchset #2 id:20001 of https://codereview.webrtc.org/2343403002/ )

Reason for revert:
Breaks internal project.

Original issue's description:
> Rename AppRTCDemo on Android and iOS to AppRTCMobile
>
> The purpose is to make it clearer it is a mobile application.
>
> BUG=webrtc:6359
> NOPRESUBMIT=true
>
> Committed: https://crrev.com/d3af58bdab5b25acd62cd816363becc7003d3e5a
> Cr-Commit-Position: refs/heads/master@{#14356}

TBR=sakal@webrtc.org,kthelgason@webrtc.org,tommi@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6359

Review-Url: https://codereview.webrtc.org/2358133003
Cr-Commit-Position: refs/heads/master@{#14358}

webrtc/examples/objc/AppRTCDemo/ios/ARDAppDelegate.m

@@ -0,0 +1,51 @@
+/*
+ *  Copyright 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.
+ */
+
+#import "ARDAppDelegate.h"
+
+#import "WebRTC/RTCFieldTrials.h"
+#import "WebRTC/RTCLogging.h"
+#import "WebRTC/RTCSSLAdapter.h"
+#import "WebRTC/RTCTracing.h"
+
+#import "ARDMainViewController.h"
+
+@implementation ARDAppDelegate {
+  UIWindow *_window;
+}
+
+#pragma mark - UIApplicationDelegate methods
+
+- (BOOL)application:(UIApplication *)application
+    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+  RTCInitFieldTrials(RTCFieldTrialOptionsSendSideBwe);
+  RTCInitializeSSL();
+  RTCSetupInternalTracer();
+  _window =  [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
+  [_window makeKeyAndVisible];
+  ARDMainViewController *viewController = [[ARDMainViewController alloc] init];
+  _window.rootViewController = viewController;
+
+#if defined(NDEBUG)
+  // In debug builds the default level is LS_INFO and in non-debug builds it is
+  // disabled. Continue to log to console in non-debug builds, but only
+  // warnings and errors.
+  RTCSetMinDebugLogLevel(RTCLoggingSeverityWarning);
+#endif
+
+  return YES;
+}
+
+- (void)applicationWillTerminate:(UIApplication *)application {
+  RTCShutdownInternalTracer();
+  RTCCleanupSSL();
+}
+
+@end