Remove vulkan from most build variants

platform_tools/android/apps/viewer/build.gradle

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 apply plugin: 'com.android.application'
 
 dependencies {
     compile 'com.android.support:support-v13:23.3.0'
     compile 'com.android.support:appcompat-v7:23.3.0'
 }
 
 android {
     compileSdkVersion 23
     buildToolsVersion "22.0.1"
     defaultConfig {
         applicationId "org.skia.viewer"
         minSdkVersion 19
         targetSdkVersion 19
         versionCode 1
         versionName "1.0"
         signingConfig signingConfigs.debug
     }
     sourceSets.main.jni.srcDirs = [] //disable automatic ndk-build call
     sourceSets.main.jniLibs.srcDir "src/main/libs"
-    productFlavors { arm {}; arm64 {}; x86 {}; x86_64 {}; mips {}; mips64 {}; }
+    productFlavors { arm {}; arm64 {}; x86 {}; x86_64 {}; mips {}; mips64 {}; arm64vulkan{}; }

[djsollen, 2016/08/22 16:07:59]

so this works from gradle, but it if I build from the command line with --vulkan
-d arm64 will I get the arm64vulkan app?  What happens if I build for a device
other than arm64?

[liyuqian, 2016/08/22 18:05:41]

Yes, "arm64vulkan" is equivalent to "--vulkan -d arm64" in command line. (The
new "arm64vulkan" is equivalent to our previous "arm64" variant.)

If we want to build vulkan on other variants, we could just create a new variant
with vulkan appended to the original variant (e.g., x86_64 -> x86_64vulkan).

 
-    setupSkiaLibraryBuild(project, applicationVariants, "--vulkan CopyViewerDeps", true)
+    setupSkiaLibraryBuild(project, applicationVariants, "CopyViewerDeps", true)
 }