Keep track of paths for fallback fonts in sandbox_ipc_linux

content/browser/renderer_host/sandbox_ipc_linux.cc

 // Copyright 2014 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.
 
 #include "content/browser/renderer_host/sandbox_ipc_linux.h"
 
 #include <fcntl.h>
 #include <fontconfig/fontconfig.h>
 #include <sys/poll.h>
 #include <sys/socket.h>
@@ skipping 313 matching lines @@
   if (!pickle.ReadInt(&iter, &c))
     return;
 
   std::string preferred_locale;
   if (!pickle.ReadString(&iter, &preferred_locale))
     return;
 
   blink::WebFallbackFont fallbackFont;
   WebFontInfo::fallbackFontForChar(c, preferred_locale.c_str(), &fallbackFont);
 
+  int pathIndex = FindOrAddPath(SkString(fallbackFont.filename.data()));
+  fallbackFont.fontconfigInterfaceId = pathIndex;
+
   Pickle reply;
   if (fallbackFont.name.data()) {
     reply.WriteString(fallbackFont.name.data());
   } else {
     reply.WriteString(std::string());
   }
   if (fallbackFont.filename.data()) {
     reply.WriteString(fallbackFont.filename.data());
   } else {
     reply.WriteString(std::string());
   }
+  reply.WriteInt(fallbackFont.fontconfigInterfaceId);
   reply.WriteInt(fallbackFont.ttcIndex);
   reply.WriteBool(fallbackFont.isBold);
   reply.WriteBool(fallbackFont.isItalic);
   SendRendererReply(fds, reply, -1);
 }
 
 void SandboxIPCHandler::HandleGetStyleForStrike(
     int fd,
     const Pickle& pickle,
     PickleIterator iter,
@@ skipping 286 matching lines @@
 }
 
 void SandboxIPCHandler::EnsureWebKitInitialized() {
   if (webkit_platform_support_)
     return;
   webkit_platform_support_.reset(new BlinkPlatformImpl);
   blink::initializeWithoutV8(webkit_platform_support_.get());
 }
 
 }  // namespace content