[PPAPI] Compositor API implementation.

Implement the compositor API which allows a plugin to combine different sources of visual data efficiently, such as PPB_ImageData and OpengGL texture.

API Proposal http://goo.gl/V7xcu3

BUG=374383

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=277208

Review URL: https://codereview.chromium.org/298023004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@277422 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 5 insertions, 0 deletions

diff --git a/ppapi/host/resource_host.cc b/ppapi/host/resource_host.cc
index b453398..2d5af58 100644
--- a/ppapi/host/resource_host.cc
+++ b/ppapi/host/resource_host.cc
@@ -48,6 +48,10 @@ void ResourceHost::SendReply(const ReplyMessageContext& context,
   host_->SendReply(context, msg);
 }
 
+bool ResourceHost::IsCompositorHost() {
+  return false;
+}
+
 bool ResourceHost::IsFileRefHost() {
   return false;
 }
diff --git a/ppapi/host/resource_host.h b/ppapi/host/resource_host.h
index a9518ee..a2d3885 100644
--- a/ppapi/host/resource_host.h
+++ b/ppapi/host/resource_host.h
@@ -56,6 +56,7 @@ class PPAPI_HOST_EXPORT ResourceHost : public ResourceMessageHandler {
 
   // Simple RTTI. A subclass that is a host for one of these APIs will override
   // the appropriate function and return true.
+  virtual bool IsCompositorHost();
   virtual bool IsFileRefHost();
   virtual bool IsFileSystemHost();
   virtual bool IsGraphics2DHost();