Merge "Add initial network security config implementation" am: 8c358207

core/java/android/security/net/config/ApplicationConfig.java

core/java/android/security/net/config/CertificateSource.java

...ava/android/security/net/config/CertificatesEntryRef.java

core/java/android/security/net/config/ConfigSource.java

core/java/android/security/net/config/Domain.java

...va/android/security/net/config/NetworkSecurityConfig.java

...roid/security/net/config/NetworkSecurityTrustManager.java

core/java/android/security/net/config/Pin.java

core/java/android/security/net/config/PinSet.java

...ndroid/security/net/config/ResourceCertificateSource.java

core/java/android/security/net/config/RootTrustManager.java

.../android/security/net/config/SystemCertificateSource.java

core/java/android/security/net/config/TrustAnchor.java

...va/android/security/net/config/UserCertificateSource.java

tests/NetworkSecurityConfigTest/Android.mk

tests/NetworkSecurityConfigTest/AndroidManifest.xml

...droid/security/net/config/NetworkSecurityConfigTests.java

...rc/android/security/net/config/TestCertificateSource.java

...est/src/android/security/net/config/TestConfigSource.java