Move ENABLE_PEPPER_CDMS to a buildflag header.
Removes the global build flag and #define and converts to a buildflag header in
ppapi/features.
A new target "//third_party/widevine/cdm:headers" was added since
widevine_cdm_version.h was unreferenced in the build. Given that this file now
requires //ppapi/features we really need "gn check" to work on it. I made the
existing users of ":version_h" reference this new target which encompasses the
public headers of the widevine CDM.
TBR=jschuh (render_messages.h)
Review-Url: https://codereview.chromium.org/2411433002
Cr-Original-Commit-Position: refs/heads/master@{#424477}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e23a62a0c4b56618da615698717ed53983854f8d
diff --git a/tools/gn/docs/cookbook.md b/tools/gn/docs/cookbook.md
index 623f84f..66a44f7 100644
--- a/tools/gn/docs/cookbook.md
+++ b/tools/gn/docs/cookbook.md
@@ -253,7 +253,7 @@
| `enable_managed_users` (0/1) | `enable_managed_users` (true/false) | `//build/config/features.gni` |
| `enable_mdns` (0/1) | `enable_mdns` (true/false) | `//build/config/features.gni` |
| `enable_one_click_signin` (0/1) | `enable_one_click_signin` (true/false) | `//chrome/common/features.gni` |
-| `enable_pepper_cdms` (0/1) | `enable_pepper_cdms` (true/false) | `//build/config/features.gni` |
+| `enable_pepper_cdms` (0/1) | `enable_pepper_cdms` (true/false) | `//ppapi/features/features.gni` |
| `enable_plugins` (0/1) | `enable_plugins` (true/false) | `//build/config/features.gni` |
| `enable_plugin_installation` (0/1) | `enable_plugin_installation` (true/false) | `//build/config/features.gni` |
| `enable_basic_printing` (0/1) | `enable_basic_printing` (true/false) | `//build/config/features.gni` |
