Introduce PPB_Flash_Font.

ppapi/proxy/flash_font_file_resource.h

+// Copyright (c) 2012 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_PROXY_FLASH_FONT_FILE_RESOURCE_H_
+#define PPAPI_PROXY_FLASH_FONT_FILE_RESOURCE_H_
+
+#include <map>
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/linked_ptr.h"
+#include "ppapi/c/private/pp_private_font_charset.h"
+#include "ppapi/proxy/plugin_resource.h"
+#include "ppapi/proxy/serialized_structs.h"
+#include "ppapi/thunk/ppb_flash_font_file_api.h"
+
+struct PP_FontDescription_Dev;
+
+namespace ppapi {
+namespace proxy {
+
+// TODO(yzshen): write unittest and browser test.
+class FlashFontFileResource : public PluginResource,
+                              public thunk::PPB_Flash_FontFile_API {
+ public:
+  FlashFontFileResource(Connection connection,
+                        PP_Instance instance,
+                        const PP_FontDescription_Dev* description,
+                        PP_PrivateFontCharset charset);
+  virtual ~FlashFontFileResource();
+
+  // Resource overrides.
+  virtual thunk::PPB_Flash_FontFile_API* AsPPB_Flash_FontFile_API() OVERRIDE;
+
+  // PPB_Flash_FontFile_API.
+  virtual PP_Bool GetFontTable(uint32_t table,
+                               void* output,
+                               uint32_t* output_length) OVERRIDE;
+
+ private:
+  // Sees if we have a cache of the font table and returns a pointer to it.
+  // Returns NULL if we don't have it.
+  std::string* GetFontTable(uint32_t table) const;
+
+  std::string* AddFontTable(uint32_t table, const std::string& contents);
+
+  typedef std::map<uint32_t, linked_ptr<std::string> > FontTableMap;
+  FontTableMap font_tables_;
+
+  SerializedFontDescription description_;
+  PP_PrivateFontCharset charset_;
+
+  DISALLOW_COPY_AND_ASSIGN(FlashFontFileResource);
+};
+
+}  // namespace proxy
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_FLASH_FONT_FILE_RESOURCE_H_