exo: Add support for secure_output interface to wayland bindings.

components/exo/buffer.cc

Index: components/exo/buffer.cc
diff --git a/components/exo/buffer.cc b/components/exo/buffer.cc
index 3989adaf07c00220b19c656da827fbdabaf632b9..d279d94b8630b15a30eaa97824467ddf234fd7d9 100644
--- a/components/exo/buffer.cc
+++ b/components/exo/buffer.cc
@@ -365,6 +365,7 @@ Buffer::~Buffer() {}
 
 scoped_ptr<cc::SingleReleaseCallback> Buffer::ProduceTextureMailbox(
     cc::TextureMailbox* texture_mailbox,
+    bool secure_output_only,
     bool lost_context) {
   DLOG_IF(WARNING, use_count_)
       << "Producing a texture mailbox for a buffer that has not been released";
@@ -408,9 +409,6 @@ scoped_ptr<cc::SingleReleaseCallback> Buffer::ProduceTextureMailbox(
                     texture_target_, query_type_));
   }
 
-  // TODO(dcastagna): Set properly based on the flag on the imported buffer.
-  bool secure_output_only = false;
-
   if (use_zero_copy_) {
     // Zero-copy means using the contents texture directly.
     Texture* texture = contents_texture_.get();