Use new lint API.

buildSrc/src/main/java/Dependencies.kt

@@ -9,7 +9,7 @@ object Versions {
     // These versions are linked: lint should be X+23.Y.Z of gradle_plugin version, according to:
     // https://github.com/alexjlockwood/android-lint-checks-demo/blob/0245fc027463137b1b4afb97c5295d60dce998b6/dependencies.gradle#L3
     const val android_gradle_plugin = "4.2.2"
-    const val android_lint_api = "27.0.1"
+    const val android_lint_api = "30.0.0-rc01"
 
     const val sentry = "1.7.10"
     const val leakcanary = "2.4"

mozilla-lint-rules/build.gradle

@@ -8,6 +8,17 @@ apply plugin: 'kotlin'
 targetCompatibility = JavaVersion.VERSION_1_8
 sourceCompatibility = JavaVersion.VERSION_1_8
 
+repositories {
+    if (project.hasProperty("centralRepo")) {
+        maven {
+            name "MavenCentral"
+            url project.property("centralRepo")
+        }
+    } else {
+        mavenCentral()
+    }
+}
+
 dependencies {
     // I didn't look thoroughly enough to really know what's going on here but I think
     // the lint API uses jdk8 so if we provide jdk7, the dependency collision system
@@ -23,6 +34,7 @@ dependencies {
     compileOnly "com.android.tools.lint:lint-api:${Versions.android_lint_api}"
     compileOnly "com.android.tools.lint:lint-checks:${Versions.android_lint_api}"
 
+    testImplementation "junit:junit:4.13.2"
     testImplementation "com.android.tools.lint:lint:${Versions.android_lint_api}"
     testImplementation "com.android.tools.lint:lint-tests:${Versions.android_lint_api}"
 }

mozilla-lint-rules/src/main/java/org/mozilla/fenix/lintrules/LintIssueRegistry.kt

@@ -5,6 +5,7 @@
 package org.mozilla.fenix.lintrules
 
 import com.android.tools.lint.client.api.IssueRegistry
+import com.android.tools.lint.client.api.Vendor
 import com.android.tools.lint.detector.api.Issue
 import org.mozilla.fenix.lintrules.perf.ConstraintLayoutPerfDetector
 
@@ -22,4 +23,8 @@ class LintIssueRegistry : IssueRegistry() {
         LicenseDetector.ISSUE_MISSING_LICENSE,
         LicenseDetector.ISSUE_INVALID_LICENSE_FORMAT
     ) + ConstraintLayoutPerfDetector.ISSUES + ContextCompatDetector.ISSUES
+    override val vendor: Vendor = Vendor(
+        vendorName = "Mozilla",
+        identifier = "mozilla-fenix"
+    )
 }