Pepper: Add initial browser host for FileRef.

This is the first change to introduce browser support for FileRef. It only
supports internal filesystems. This also includes the messsages that need to be
introduced (and the logic for reading and writing the new FileRef_CreateInfo
structure).

This change was tested (as part of a larger local change) and passed tests in
FileRef.

TBR=darin
BUG=225441

Review URL: https://chromiumcodereview.appspot.com/16478002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@206864 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 13 insertions, 0 deletions

diff --git a/ppapi/host/resource_host.cc b/ppapi/host/resource_host.cc
index 96d8849..6e08c01 100644
--- a/ppapi/host/resource_host.cc
+++ b/ppapi/host/resource_host.cc
@@ -48,6 +48,15 @@ void ResourceHost::SendReply(const ReplyMessageContext& context,
   host_->SendReply(context, msg);
 }
 
+content::PepperFileRefHost* ResourceHost::AsPepperFileRefHost() {
+  return NULL;
+}
+
+content::PepperFileSystemBrowserHost*
+ResourceHost::AsPepperFileSystemBrowserHost() {
+  return NULL;
+}
+
 content::PepperFileSystemHost* ResourceHost::AsPepperFileSystemHost() {
   return NULL;
 }
diff --git a/ppapi/host/resource_host.h b/ppapi/host/resource_host.h
index 583766e..2c40f62 100644
--- a/ppapi/host/resource_host.h
+++ b/ppapi/host/resource_host.h
@@ -15,6 +15,8 @@
 #include "ppapi/shared_impl/host_resource.h"
 
 namespace content {
+class PepperFileRefHost;
+class PepperFileSystemBrowserHost;
 class PepperFileSystemHost;
 class PepperGraphics2DHost;
 }
@@ -60,6 +62,8 @@ class PPAPI_HOST_EXPORT ResourceHost : public ResourceMessageHandler {
                          const IPC::Message& msg) OVERRIDE;
 
   // Simple RTTI. Overidden by subclasses that implement the interface.
+  virtual content::PepperFileRefHost* AsPepperFileRefHost();
+  virtual content::PepperFileSystemBrowserHost* AsPepperFileSystemBrowserHost();
   virtual content::PepperFileSystemHost* AsPepperFileSystemHost();
   virtual content::PepperGraphics2DHost* AsPepperGraphics2DHost();