Android: Create a new ANGLE APK package name for AGI

Use "org.chromium.angle.agi" for the specially-built ANGLE APK for
Android Graphics Inspector (AGI).  This will allow AGI to work with a
version of ANGLE that is built for it regardless of what other
version(s) of ANGLE are or aren't installed on the device.

Continue to use "org.chromium.angle" for developer builds.

Bug: b/168745566
Change-Id: I4610d3b1eec6b0564d020dca7bd1f9e9d6532a64
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2684920
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Cody Northrop <cnorthrop@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Ian Elliott <ianelliott@google.com>

BUILD.gn

@@ -1231,22 +1231,33 @@ if (!is_component_build && is_android && symbol_level != 0) {
 
 if (build_with_chromium && !is_component_build && is_android &&
     current_toolchain == default_toolchain) {
-  # Package ANGLE libraries
+  apk_version_code = "0"
+  if (angle_enable_commit_id) {
+    apk_version_code =
+        exec_script("src/commit_id.py", [ "position" ], "trim string")
+  }
+
+  # Package ANGLE libraries for normal use on Android
   angle_apk("angle_chromium_apk") {
     package_name = "org.chromium.angle"
     apk_name = "AngleLibraries"
     version_name = "ANGLE Developer Build"
-
-    if (angle_enable_commit_id) {
-      version_code =
-          exec_script("src/commit_id.py", [ "position" ], "trim string")
-    } else {
-      version_code = "0"
+    version_code = apk_version_code
   }
+
+  # Package ANGLE libraries for AGI use on Android
+  angle_apk("angle_agi_chromium_apk") {
+    package_name = "org.chromium.angle.agi"
+    apk_name = "AngleAgiLibraries"
+    version_name = "ANGLE AGI Build"
+    version_code = apk_version_code
   }
 
   group("angle_apks") {
-    deps = [ ":angle_chromium_apk" ]
+    deps = [
+      ":angle_agi_chromium_apk",
+      ":angle_chromium_apk",
+    ]
   }
 }