Add Pepper TrueType font API plumbing.

ppapi/thunk/ppb_truetype_font_api.h

Index: ppapi/thunk/ppb_truetype_font_api.h
diff --git a/ppapi/thunk/ppb_truetype_font_api.h b/ppapi/thunk/ppb_truetype_font_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..9df6c9878f54b436f15a119458c55e7e33393b7b
--- /dev/null
+++ b/ppapi/thunk/ppb_truetype_font_api.h
@@ -0,0 +1,36 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_THUNK_PPB_TRUETYPE_FONT_API_H_
+#define PPAPI_THUNK_PPB_TRUETYPE_FONT_API_H_
+
+#include "base/memory/ref_counted.h"
+#include "ppapi/c/dev/ppb_truetype_font_dev.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
+
+namespace ppapi {
+
+class TrackedCallback;
+
+namespace thunk {
+
+class PPAPI_THUNK_EXPORT PPB_TrueTypeFont_API {

[dmichael (off chromium), 2013/03/12 18:07:58]

Note Justin TerAvest has been trying to make thunks automatically generated.
There's an attribute you can add to your
IDL:https://code.google.com/p/chromium/codesearch#chromium/src/ppapi/api/ppb_file_system.idl&q=generate_thunk&sq=package:chromium&type=cs&l=10

If it works for you at all, it will put GetFontFamilies in to 1 API with these.
Is there any chance that's feasible? Or maybe you can talk to Justin about ways
to make the thunk generator work for your stuff?

If it's too hard, I'm okay with it never being generated. But it's worth looking
in to briefly. Possibly for a future CL if you change anything at all.

[bbudge, 2013/03/13 01:26:50]

I'll switch this over in a follow up patch, when EnterInstanceAPI is supported.
On 2013/03/12 18:07:58, dmichael wrote:

+ public:
+  virtual ~PPB_TrueTypeFont_API() {}
+
+  virtual int32_t Describe(PP_TrueTypeFontDesc_Dev* desc,
+                           scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t GetTableTags(const PP_ArrayOutput& output,
+                               scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t GetTable(uint32_t table,
+                           int32_t offset,
+                           int32_t max_data_length,
+                           const PP_ArrayOutput& output,
+                           scoped_refptr<TrackedCallback> callback) = 0;
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_PPB_TRUETYPE_FONT_API_H_