pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/bouncer/build.gradle

@@ -0,0 +1,76 @@
+buildDir "${topobjdir}/gradle/build/mobile/android/bouncer"
+
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion mozconfig.substs.ANDROID_BUILD_TOOLS_VERSION
+
+    defaultConfig {
+        targetSdkVersion 23
+        minSdkVersion 15 
+        applicationId mozconfig.substs.ANDROID_PACKAGE_NAME
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+ 
+    dexOptions {
+        javaMaxHeapSize "2g"
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+    }
+
+    sourceSets {
+        main {
+            manifest.srcFile "${topobjdir}/mobile/android/bouncer/AndroidManifest.xml"
+            assets {
+                if (mozconfig.substs.MOZ_ANDROID_DISTRIBUTION_DIRECTORY) {
+                    srcDir "${mozconfig.substs.MOZ_ANDROID_DISTRIBUTION_DIRECTORY}/assets"
+                }
+            }
+            java {
+                srcDir 'java'
+            }
+            res {
+                srcDir "${topsrcdir}/${mozconfig.substs.MOZ_BRANDING_DIRECTORY}/res" // For the icon.
+                srcDir 'res'
+            }
+        }
+    }
+}
+
+task generateCodeAndResources(type:Exec) {
+    workingDir "${topobjdir}"
+
+    commandLine mozconfig.substs.GMAKE
+    args '-C'
+    args "${topobjdir}/mobile/android/bouncer"
+    args 'gradle-targets'
+
+    // Only show the output if something went wrong.
+    ignoreExitValue = true
+    standardOutput = new ByteArrayOutputStream()
+    errorOutput = standardOutput
+    doLast {
+        if (execResult.exitValue != 0) {
+            throw new GradleException("Process '${commandLine}' finished with non-zero exit value ${execResult.exitValue}:\n\n${standardOutput.toString()}")
+        }
+    }
+}
+
+afterEvaluate {
+    android.applicationVariants.all {
+        preBuild.dependsOn generateCodeAndResources
+    }
+}