Make the Pepper proxy support in-process font rendering.

content/renderer/renderer_sandbox_support_linux.h

-// Copyright (c) 2010 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 CONTENT_RENDERER_RENDERER_SANDBOX_SUPPORT_LINUX_H_
-#define CONTENT_RENDERER_RENDERER_SANDBOX_SUPPORT_LINUX_H_
-#pragma once
-
-#include <stdint.h>
-
-#include <string>
-
-namespace WebKit {
-struct WebFontRenderStyle;
-}
-
-namespace renderer_sandbox_support {
-
-// Return a font family which provides glyphs for the Unicode code points
-// specified by |utf16|
-//   utf16: a native-endian UTF16 string
-//   num_utf16: the number of 16-bit words in |utf16|
-//   preferred_locale: preferred locale identifier for the |utf16|
-//
-// Returns: the font family or an empty string if the request could not be
-// satisfied.
-std::string getFontFamilyForCharacters(const uint16_t* utf16,
-                                       size_t num_utf16,
-                                       const char* preferred_locale);
-
-void getRenderStyleForStrike(const char* family, int sizeAndStyle,
-                             WebKit::WebFontRenderStyle* out);
-
-// Returns a file descriptor for a shared memory segment.
-// The second argument is ignored because SHM segments are always
-// mappable with PROT_EXEC on Linux.
-int MakeSharedMemorySegmentViaIPC(size_t length, bool executable);
-
-// Return a read-only file descriptor to the font which best matches the given
-// properties or -1 on failure.
-//   charset: specifies the language(s) that the font must cover. See
-// render_sandbox_host_linux.cc for more information.
-int MatchFontWithFallback(const std::string& face, bool bold,
-                          bool italic, int charset);
-
-// GetFontTable loads a specified font table from an open SFNT file.
-//   fd: a file descriptor to the SFNT file. The position doesn't matter.
-//   table: the table in *big-endian* format, or 0 for the whole font file.
-//   output: a buffer of size output_length that gets the data.  can be 0, in
-//     which case output_length will be set to the required size in bytes.
-//   output_length: size of output, if it's not 0.
-//
-//   returns: true on success.
-bool GetFontTable(int fd, uint32_t table, uint8_t* output,
-                  size_t* output_length);
-
-};  // namespace render_sandbox_support
-
-#endif  // CONTENT_RENDERER_RENDERER_SANDBOX_SUPPORT_LINUX_H_