Revert "Remove old-style support for translated second architectures"

This reverts commit fe6330c7d2d6102a0436da2892e71e3b490ac15c.

Reason for revert: this was accidentally propping up NDK builds
Bug: 141242600
Change-Id: Ie9f8e31479a74e8e9e14d720a5936da6b1d5d113
diff --git a/android/arch.go b/android/arch.go
index b038956..907c58b 100644
--- a/android/arch.go
+++ b/android/arch.go
@@ -527,6 +527,7 @@
 	CpuVariant   string
 	Abi          []string
 	ArchFeatures []string
+	Native       bool
 }
 
 func (a Arch) String() string {
@@ -1481,6 +1482,11 @@
 			addTarget(Android, *variables.DeviceSecondaryArch,
 				variables.DeviceSecondaryArchVariant, variables.DeviceSecondaryCpuVariant,
 				variables.DeviceSecondaryAbi, NativeBridgeDisabled, nil, nil)
+
+			deviceArches := targets[Android]
+			if deviceArches[0].Arch.ArchType.Multilib == deviceArches[1].Arch.ArchType.Multilib {
+				deviceArches[1].Arch.Native = false
+			}
 		}
 
 		if variables.NativeBridgeArch != nil && *variables.NativeBridgeArch != "" {
@@ -1628,7 +1634,7 @@
 		if err != nil {
 			return nil, err
 		}
-
+		arch.Native = false
 		ret = append(ret, Target{
 			Os:   Android,
 			Arch: arch,
@@ -1657,6 +1663,7 @@
 		ArchVariant: stringPtr(archVariant),
 		CpuVariant:  stringPtr(cpuVariant),
 		Abi:         abi,
+		Native:      true,
 	}
 
 	if a.ArchVariant == a.ArchType.Name || a.ArchVariant == "generic" {
diff --git a/android/config.go b/android/config.go
index 3006064..cb1bdf5 100644
--- a/android/config.go
+++ b/android/config.go
@@ -240,10 +240,10 @@
 	config := testConfig.config
 
 	config.Targets[Android] = []Target{
-		{Android, Arch{ArchType: X86_64, ArchVariant: "silvermont", Abi: []string{"arm64-v8a"}}, NativeBridgeDisabled, "", ""},
-		{Android, Arch{ArchType: X86, ArchVariant: "silvermont", Abi: []string{"armeabi-v7a"}}, NativeBridgeDisabled, "", ""},
-		{Android, Arch{ArchType: Arm64, ArchVariant: "armv8-a", Abi: []string{"arm64-v8a"}}, NativeBridgeEnabled, "x86_64", "arm64"},
-		{Android, Arch{ArchType: Arm, ArchVariant: "armv7-a-neon", Abi: []string{"armeabi-v7a"}}, NativeBridgeEnabled, "x86", "arm"},
+		{Android, Arch{ArchType: X86_64, ArchVariant: "silvermont", Native: true, Abi: []string{"arm64-v8a"}}, NativeBridgeDisabled, "", ""},
+		{Android, Arch{ArchType: X86, ArchVariant: "silvermont", Native: true, Abi: []string{"armeabi-v7a"}}, NativeBridgeDisabled, "", ""},
+		{Android, Arch{ArchType: Arm64, ArchVariant: "armv8-a", Native: true, Abi: []string{"arm64-v8a"}}, NativeBridgeEnabled, "x86_64", "arm64"},
+		{Android, Arch{ArchType: Arm, ArchVariant: "armv7-a-neon", Native: true, Abi: []string{"armeabi-v7a"}}, NativeBridgeEnabled, "x86", "arm"},
 	}
 
 	return testConfig
@@ -255,7 +255,7 @@
 
 	config.Targets = map[OsType][]Target{
 		Fuchsia: []Target{
-			{Fuchsia, Arch{ArchType: Arm64, ArchVariant: ""}, NativeBridgeDisabled, "", ""},
+			{Fuchsia, Arch{ArchType: Arm64, ArchVariant: "", Native: true}, NativeBridgeDisabled, "", ""},
 		},
 		BuildOs: []Target{
 			{BuildOs, Arch{ArchType: X86_64}, NativeBridgeDisabled, "", ""},
@@ -272,8 +272,8 @@
 
 	config.Targets = map[OsType][]Target{
 		Android: []Target{
-			{Android, Arch{ArchType: Arm64, ArchVariant: "armv8-a", Abi: []string{"arm64-v8a"}}, NativeBridgeDisabled, "", ""},
-			{Android, Arch{ArchType: Arm, ArchVariant: "armv7-a-neon", Abi: []string{"armeabi-v7a"}}, NativeBridgeDisabled, "", ""},
+			{Android, Arch{ArchType: Arm64, ArchVariant: "armv8-a", Native: true, Abi: []string{"arm64-v8a"}}, NativeBridgeDisabled, "", ""},
+			{Android, Arch{ArchType: Arm, ArchVariant: "armv7-a-neon", Native: true, Abi: []string{"armeabi-v7a"}}, NativeBridgeDisabled, "", ""},
 		},
 		BuildOs: []Target{
 			{BuildOs, Arch{ArchType: X86_64}, NativeBridgeDisabled, "", ""},
@@ -1009,6 +1009,19 @@
 	return "", false
 }
 
+// SecondArchIsTranslated returns true if the primary device arch is X86 or X86_64 and the device also has an arch
+// that is Arm or Arm64.
+func (c *config) SecondArchIsTranslated() bool {
+	deviceTargets := c.Targets[Android]
+	if len(deviceTargets) < 2 {
+		return false
+	}
+
+	arch := deviceTargets[0].Arch
+
+	return (arch.ArchType == X86 || arch.ArchType == X86_64) && hasArmAndroidArch(deviceTargets)
+}
+
 func (c *config) IntegerOverflowDisabledForPath(path string) bool {
 	if c.productVariables.IntegerOverflowExcludePaths == nil {
 		return false