gn2bp: Restrict visibility

Bug: 273656868
Test: ./update_results.sh, TH
Change-Id: Ieb8285b0308495c0cf2d9281ed54714280b7ebb0
diff --git a/tools/gn2bp/Android.bp.swp b/tools/gn2bp/Android.bp.swp
index 163f8b6..8e6703a 100644
--- a/tools/gn2bp/Android.bp.swp
+++ b/tools/gn2bp/Android.bp.swp
@@ -23,6 +23,9 @@
     default_applicable_licenses: [
         "external_cronet_license",
     ],
+    default_visibility: [
+        ":__subpackages__",
+    ],
 }
 
 // GN: //components/cronet/android:cronet_api_java
@@ -54,6 +57,9 @@
         "components/cronet/android/api/src/android/net/http/UrlRequest.java",
         "components/cronet/android/api/src/android/net/http/UrlResponseInfo.java",
     ],
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
 }
 
 // GN: //base/allocator:buildflags
@@ -6556,6 +6562,9 @@
         "-Wl,-wrap,vasprintf",
     ],
     stem: "libcronet.108.0.5359.128",
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
     target: {
         android_arm: {
             cflags: [
@@ -8274,6 +8283,9 @@
         "-Wl,-wrap,vasprintf",
     ],
     stem: "libcronet_tests",
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
     target: {
         android_arm: {
             cflags: [
@@ -8549,6 +8561,9 @@
         "-Wl,-wrap,vasprintf",
     ],
     stem: "libcronet_unittests_android__library",
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
     target: {
         android_arm: {
             cflags: [
@@ -11183,6 +11198,9 @@
         "-Aorg.chromium.chrome.skipGenJni",
         "-Apackage_prefix=android.net.http.internal",
     ],
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
 }
 
 // GN: //gn:java
@@ -11460,6 +11478,9 @@
     javacflags: [
         "-Aorg.chromium.chrome.skipGenJni",
     ],
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
 }
 
 // GN: //base/android/jni_generator:jni_processor
@@ -16147,6 +16168,9 @@
         "-Wl,-wrap,vasprintf",
     ],
     stem: "libnet_unittests__library",
+    visibility: [
+        "//packages/modules/Connectivity:__subpackages__",
+    ],
     target: {
         android_arm: {
             cflags: [