[PPAPI] Added pp::VarResource_Dev class.

This is a C++ wrapper for the C API PPB_VarResource_Dev.

Also added methods to pp::FileSystem for converting a pp::Resource to a
pp::FileSystem, which are necessary for making use of a resource
extracted using pp::VarResource_Dev.

(Committed by [email protected] on behalf of [email protected])

BUG=177017
[email protected], [email protected], [email protected], [email protected]

Review URL: https://codereview.chromium.org/52233002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232482 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/ppapi/ppapi_sources.gypi b/ppapi/ppapi_sources.gypi
index 5ffd8f6..52d8e005 100644
--- a/ppapi/ppapi_sources.gypi
+++ b/ppapi/ppapi_sources.gypi
@@ -270,6 +270,8 @@
       'cpp/dev/truetype_font_dev.h',
       'cpp/dev/url_util_dev.cc',
       'cpp/dev/url_util_dev.h',
+      'cpp/dev/var_resource_dev.cc',
+      'cpp/dev/var_resource_dev.h',
       'cpp/dev/video_capture_client_dev.cc',
       'cpp/dev/video_capture_client_dev.h',
       'cpp/dev/video_capture_dev.cc',