Replace most uses of asset_location with android_assets() template

chrome/android/BUILD.gn

Index: chrome/android/BUILD.gn
diff --git a/chrome/android/BUILD.gn b/chrome/android/BUILD.gn
index 31c4d25c8018389fd2f99659e67dedd6a7ae9f1c..9c6dd330526a04d8c8a44a6ebb84305db496fd26 100644
--- a/chrome/android/BUILD.gn
+++ b/chrome/android/BUILD.gn
@@ -347,26 +347,17 @@ android_resources("chrome_public_apk_resources") {
   ]
 }
 
-copy_ex("chrome_public_apk_assets") {
-  clear_dir = true
-  dest = "$root_build_dir/chrome_public_apk_assets"
+android_assets("chrome_public_apk_assets") {
   sources = chrome_android_paks_gypi.chrome_android_pak_input_resources
-  if (icu_use_data_file) {
-    sources += [ "$root_build_dir/icudtl.dat" ]
-  }
+  sources += [ "$root_build_dir/resources.pak" ]
+  disable_compression = true
+
   deps = [
     "//chrome:packed_extra_resources",
     "//chrome:packed_resources",
-    "//third_party/icu:icudata",
+    "//third_party/icu:icu_assets",
+    "//v8:v8_external_startup_data_assets",
   ]
-
-  if (v8_use_external_startup_data) {
-    renaming_sources = v8_external_startup_data_renaming_sources
-    renaming_destinations = v8_external_startup_data_renaming_destinations
-    deps += [ "//v8" ]
-  }
-
-  sources += [ "$root_build_dir/resources.pak" ]
 }
 
 # GYP: //chrome/android/chrome_apk.gyp:chrome_apk_manifest