Switch Chrome Android using v8 arch specific external data name

chrome/chrome_android_paks.gypi

Index: chrome/chrome_android_paks.gypi
diff --git a/chrome/chrome_android_paks.gypi b/chrome/chrome_android_paks.gypi
index 1ebd36352dcfa5fe4212ea2a7778b30470a677fb..aa3257405db5833640f400642b9cf929912e2881 100644
--- a/chrome/chrome_android_paks.gypi
+++ b/chrome/chrome_android_paks.gypi
@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
+  'includes': ['../build/android/v8_external_startup_data_arch_suffix.gypi'],
   'variables': {
     'chrome_android_pak_output_folder': '<@(PRODUCT_DIR)/assets/<(package_name)',
     'chrome_android_pak_input_resources': [
@@ -68,13 +69,9 @@
         ],
       }],
       ['v8_use_external_startup_data==1', {
-        'chrome_android_pak_input_resources': [
-          '<(PRODUCT_DIR)/natives_blob.bin',
-          '<(PRODUCT_DIR)/snapshot_blob.bin',
-        ],
         'chrome_android_pak_output_resources': [
-          '<(chrome_android_pak_output_folder)/natives_blob.bin',
-          '<(chrome_android_pak_output_folder)/snapshot_blob.bin',
+          '<(chrome_android_pak_output_folder)/natives_blob_<(arch_suffix).bin',
+          '<(chrome_android_pak_output_folder)/snapshot_blob_<(arch_suffix).bin',
         ],
       }],
     ],
@@ -93,6 +90,18 @@
           '<@(chrome_android_pak_input_resources)',
         ],
         'clear': 1,
+        'conditions': [
+          ['v8_use_external_startup_data==1', {
+             'renaming_sources': [

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

I'm still not crazy about this interface. I'm wondering if something like

  'rename': [
    ['<(PRODUCT_DIR)/snapshot_blob.bin', 'snapshot_blob_<(arch_suffix).bin'],
    ['<(PRODUCT_DIR)/natives_blob.bin', 'natives_blob_<(arch_suffix).bin'],
  ]

would work...

That said, I suppose it's more important that we get the GN interface right.
(obviously not in this CL)

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

I will keep an eye on how to improve this.

+               '<(PRODUCT_DIR)/snapshot_blob.bin',
+               '<(PRODUCT_DIR)/natives_blob.bin',
+             ],
+             'renaming_destinations': [
+               'snapshot_blob_<(arch_suffix).bin',
+               'natives_blob_<(arch_suffix).bin',
+             ],
+          }],
+        ],
       },
       'includes': ['../build/android/copy_ex.gypi'],
     },