Move //build/module_args/v8.gni to //build_overrides.

build_overrides/README.md

Index: build_overrides/README.md
diff --git a/build_overrides/README.md b/build_overrides/README.md
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+# Build overrides in GN
+
+This directory is used to allow different products to customize settings
+for repos that are DEPS'ed in or shared. For example, one might wish to
+build V8 one way in a standalone build, and another when being built as
+part of Chromium.
+
+In order to use the `build_overrides` directory, each product should
+have its own copy of a file, where each file defines a set of variables

[tfarina, 2015/10/13 04:40:46]

by 'a file' you mean that which product like v8 or webrtc will have to have a
v8.gni, webrtc.gni in their trees? Can the name be anything they want or does it
need to match exactly with the one build_overrides?

+that can be customized per checkout. For example, the `//build` directory
+might be shared between V8 and Chromium (and exactly the same, with V8
+DEPS'ing in Chromium's copy of `//build`), but each repo might have its own
+local `build_overrides/v8.gni` file.