Preparation CL for H264 support in WebRTC.

content/renderer/BUILD.gn

Index: content/renderer/BUILD.gn
diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn
index b08f9ddf5dd341792de19fde8fe8ef72833ef423..00ae81137a4e479e947f95266178d497fcbf6abb 100644
--- a/content/renderer/BUILD.gn
+++ b/content/renderer/BUILD.gn
@@ -4,8 +4,10 @@
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
+import("//build/buildflag_header.gni")
 import("//content/renderer/renderer.gni")
 import("//media/media_options.gni")
+import("//third_party/webrtc/build/webrtc.gni")
 
 source_set("renderer") {
   # Only the public target should depend on this. All other targets (even
@@ -28,6 +30,7 @@ source_set("renderer") {
 
     # TODO(GYP) bug 376846 remove this. This should be inherited from //net but

[brettw, 2016/02/03 22:19:56]

Can you delete this comment? It looks like it applies to your dep but it
doesn't. I think it's obsolete, or at least my intention was lost in time.

...actually it was removed last week! You will just need to merge this file.

[hbos_chromium, 2016/02/04 10:47:32]

Merging got rid of it.

     # those don't cross component boundaries.
+    ":renderer_features",
     "//base/allocator",
     "//cc",
     "//cc/blink",
@@ -245,3 +248,9 @@ source_set("renderer") {
     deps += [ "//ui/ozone" ]
   }
 }
+
+buildflag_header("renderer_features") {
+  header = "renderer_features.h"
+
+  flags = [ "RTC_USE_H264=$rtc_use_h264" ]
+}