Use jinja2 to template webview manifest files.

android_webview/android_webview.gyp

Index: android_webview/android_webview.gyp
diff --git a/android_webview/android_webview.gyp b/android_webview/android_webview.gyp
index f20c3be27b995af7f04e2e62a32e17df39b7be2f..72333881fa4a1ccc9dcf71eda013b3eb67625a1b 100644
--- a/android_webview/android_webview.gyp
+++ b/android_webview/android_webview.gyp
@@ -388,11 +388,17 @@
           'variables': {
             'apk_name': 'SystemWebView',
             'android_sdk_jar': '../third_party/android_platform/webview/frameworks_5.1.0_r1.jar',
-            'android_manifest_path': 'apk/java/AndroidManifest.xml',
+            'jinja_inputs': ['apk/java/AndroidManifest.xml'],

[Torne, 2015/03/30 13:31:09]

Thinking about it more, all this logic should go in
system_webview_apk_common.gypi really, since the only thing that is different in
different cases is jinja_variables.

[Tobias Sargeant, 2015/03/30 13:53:07]

Done.

+            'jinja_output': '<(INTERMEDIATE_DIR)/AndroidManifest.xml',
+            'jinja_variables': [ ],
+            'android_manifest_path': '<(INTERMEDIATE_DIR)/AndroidManifest.xml',
             'java_in_dir': 'glue/java',
             'resource_dir': 'apk/java/res',
           },
-          'includes': [ 'apk/system_webview_apk_common.gypi' ],
+          'includes': [
+            'apk/system_webview_apk_common.gypi',
+            '../build/android/jinja_template.gypi',
+          ],
         },
       ],
      }, {  # android_webview_build==1