Switch Chrome Android using v8 arch specific external data name

build_overrides/v8.gni

Index: build_overrides/v8.gni
diff --git a/build_overrides/v8.gni b/build_overrides/v8.gni
index 4fc5f98c4f42f5b9401d58ea216bb41a0888aa2f..8a13d658fdbc4373da74d6b624b6e600140f1e26 100644
--- a/build_overrides/v8.gni
+++ b/build_overrides/v8.gni
@@ -18,3 +18,22 @@ v8_use_external_startup_data = !(is_chromeos || is_win || is_ios)
 v8_extra_library_files = []
 v8_experimental_extra_library_files =
     [ "../third_party/WebKit/Source/core/streams/ByteLengthQueuingStrategy.js" ]
+
+if (is_android) {
+  v8_external_startup_data_renaming_sources = [
+    "$root_build_dir/natives_blob.bin",
+    "$root_build_dir/snapshot_blob.bin",
+  ]
+  if (current_cpu == "arm" || current_cpu == "x86" || current_cpu == "mipsel") {
+    v8_external_startup_data_renaming_destinations = [
+      "natives_blob_32.bin",
+      "snapshot_blob_32.bin",
+    ]
+  } else if (current_cpu == "arm64" || current_cpu == "x64" ||

[jbudorick, 2015/10/19 22:57:23]

Similarly here.

[michaelbai, 2015/10/20 00:10:11]

Done.

+             current_cpu == "mips64el") {
+    v8_external_startup_data_renaming_destinations = [
+      "natives_blob_64.bin",
+      "snapshot_blob_64.bin",
+    ]
+  }
+}