Use the WebKit default fonts when specifying generic font families.

ppapi/proxy/plugin_dispatcher.cc

 // Copyright (c) 2011 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 "ppapi/proxy/plugin_dispatcher.h"
 
 #include <map>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_sync_channel.h"
 #include "base/debug/trace_event.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/plugin_message_filter.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/plugin_var_serialization_rules.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppb_font_proxy.h"
 #include "ppapi/proxy/ppp_class_proxy.h"
 #include "ppapi/proxy/resource_creation_proxy.h"
+#include "ppapi/shared_impl/ppapi_preferences.h"

[yzshen1, 2011/05/25 23:40:11]

[minor]
You may not need it since it has been included by the .h file.

 #include "ppapi/shared_impl/tracker_base.h"
 
 #if defined(OS_POSIX)
 #include "base/eintr_wrapper.h"
 #include "ipc/ipc_channel_posix.h"
 #endif
 
 namespace pp {
 namespace proxy {
 
@@ skipping 82 matching lines @@
                "Line", IPC_MESSAGE_ID_LINE(msg.type()));
   // Handle common control messages.
   if (Dispatcher::OnMessageReceived(msg))
     return true;
 
   if (msg.routing_id() == MSG_ROUTING_CONTROL) {
     // Handle some plugin-specific control messages.
     bool handled = true;
     IPC_BEGIN_MESSAGE_MAP(PluginDispatcher, msg)
       IPC_MESSAGE_HANDLER(PpapiMsg_SupportsInterface, OnMsgSupportsInterface)
+      IPC_MESSAGE_HANDLER(PpapiMsg_SetPreferences, OnMsgSetPreferences)
     IPC_END_MESSAGE_MAP()
     return handled;
   }
 
   if (msg.routing_id() <= 0 && msg.routing_id() >= INTERFACE_ID_COUNT) {
     // Host is sending us garbage. Since it's supposed to be trusted, this
     // isn't supposed to happen. Crash here in all builds in case the renderer
     // is compromised.
     CHECK(false);
     return true;
@@ skipping 132 matching lines @@
 
   // Query the plugin & cache the result.
   const void* interface_functions = GetLocalInterface(interface_name.c_str());
   if (!interface_functions)
     return;
   target_proxies_[info->id].reset(
       info->create_proxy(this, interface_functions));
   *result = true;
 }
 
+void PluginDispatcher::OnMsgSetPreferences(const ::ppapi::Preferences& prefs) {
+  preferences_ = prefs;
+}
+
 }  // namespace proxy
 }  // namespace pp