Add test annotations to AppRTCDemoTest.

After rolling in https://codereview.webrtc.org/1847963004 the AppRTCDemoTest
started running 0 tests due to https://crbug.com/601464. Adding test annotations
makes the tests being executed again.

BUG=chromium:601464
NOTRY=True

Review URL: https://codereview.webrtc.org/1876233002

Cr-Commit-Position: refs/heads/master@{#12325}
diff --git a/webrtc/examples/androidtests/src/org/appspot/apprtc/test/LooperExecutorTest.java b/webrtc/examples/androidtests/src/org/appspot/apprtc/test/LooperExecutorTest.java
index 29ccaef..60d3c1c 100644
--- a/webrtc/examples/androidtests/src/org/appspot/apprtc/test/LooperExecutorTest.java
+++ b/webrtc/examples/androidtests/src/org/appspot/apprtc/test/LooperExecutorTest.java
@@ -16,12 +16,14 @@
 import org.appspot.apprtc.util.LooperExecutor;
 
 import android.test.InstrumentationTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Log;
 
 public class LooperExecutorTest extends InstrumentationTestCase {
   private static final String TAG = "LooperTest";
   private static final int WAIT_TIMEOUT = 5000;
 
+  @SmallTest
   public void testLooperExecutor() throws InterruptedException {
     Log.d(TAG, "testLooperExecutor");
     final int counter[] = new int[1];
diff --git a/webrtc/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java b/webrtc/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
index ca7c2f9..4c96637 100644
--- a/webrtc/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
+++ b/webrtc/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
@@ -31,6 +31,7 @@
 
 import android.os.Build;
 import android.test.InstrumentationTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Log;
 
 public class PeerConnectionClientTest extends InstrumentationTestCase
@@ -293,6 +294,7 @@
     }
   }
 
+  @SmallTest
   public void testSetLocalOfferMakesVideoFlowLocally()
       throws InterruptedException {
     Log.d(TAG, "testSetLocalOfferMakesVideoFlowLocally");
@@ -358,22 +360,27 @@
     Log.d(TAG, "testLoopback done.");
   }
 
+  @SmallTest
   public void testLoopbackAudio() throws InterruptedException {
     doLoopbackTest(createParametersForAudioCall(), false);
   }
 
+  @SmallTest
   public void testLoopbackVp8() throws InterruptedException {
     doLoopbackTest(createParametersForVideoCall(VIDEO_CODEC_VP8, false), false);
   }
 
-  public void DISABLED_testLoopbackVp9() throws InterruptedException {
+  //@SmallTest
+  public void testLoopbackVp9() throws InterruptedException {
     doLoopbackTest(createParametersForVideoCall(VIDEO_CODEC_VP9, false), false);
   }
 
+  @SmallTest
   public void testLoopbackH264() throws InterruptedException {
     doLoopbackTest(createParametersForVideoCall(VIDEO_CODEC_H264, false), false);
   }
 
+  @SmallTest
   public void testLoopbackVp8DecodeToTexture() throws InterruptedException {
     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
       Log.i(TAG, "Decode to textures is not supported, requires SDK version 19.");
@@ -382,7 +389,8 @@
     doLoopbackTest(createParametersForVideoCall(VIDEO_CODEC_VP8, false), true);
   }
 
-  public void DISABLED_testLoopbackVp9DecodeToTexture() throws InterruptedException {
+  //@SmallTest
+  public void testLoopbackVp9DecodeToTexture() throws InterruptedException {
     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
       Log.i(TAG, "Decode to textures is not supported, requires SDK version 19.");
       return;
@@ -390,6 +398,7 @@
     doLoopbackTest(createParametersForVideoCall(VIDEO_CODEC_VP9, false), true);
   }
 
+  @SmallTest
   public void testLoopbackH264DecodeToTexture() throws InterruptedException {
     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
       Log.i(TAG, "Decode to textures is not supported, requires SDK version 19.");
@@ -398,6 +407,7 @@
     doLoopbackTest(createParametersForVideoCall(VIDEO_CODEC_H264, false), true);
   }
 
+  @SmallTest
   public void testLoopbackVp8CaptureToTexture() throws InterruptedException {
     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
       Log.i(TAG, "Encode to textures is not supported. Requires SDK version 19");
@@ -415,6 +425,7 @@
   // Test that a call can be setup even if the EGL context used during initialization is
   // released before the Video codecs are created. The HW encoder and decoder is setup to use
   // textures.
+  @SmallTest
   public void testLoopbackEglContextReleasedAfterCreatingPc() throws InterruptedException {
     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
       Log.i(TAG, "Decode to textures is not supported. Requires SDK version 19");
@@ -455,6 +466,7 @@
     Log.d(TAG, "testLoopback done.");
   }
 
+  @SmallTest
   public void testLoopbackH264CaptureToTexture() throws InterruptedException {
     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
       Log.i(TAG, "Encode to textures is not supported. Requires KITKAT");
@@ -472,6 +484,7 @@
 
   // Checks if default front camera can be switched to back camera and then
   // again to front camera.
+  @SmallTest
   public void testCameraSwitch() throws InterruptedException {
     Log.d(TAG, "testCameraSwitch");
     loopback = true;
@@ -518,6 +531,7 @@
 
   // Checks if video source can be restarted - simulate app goes to
   // background and back to foreground.
+  @SmallTest
   public void testVideoSourceRestart() throws InterruptedException {
     Log.d(TAG, "testVideoSourceRestart");
     loopback = true;
@@ -565,6 +579,7 @@
   }
 
   // Checks if capture format can be changed on fly and decoder can be reset properly.
+  @SmallTest
   public void testCaptureFormatChange() throws InterruptedException {
     Log.d(TAG, "testCaptureFormatChange");
     loopback = true;