Use the WebKit default fonts when specifying generic font families.

ppapi/proxy/ppapi_messages.h

 // 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.
 
 // Multiply-included message header, no traditional include guard.
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 11 matching lines @@
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_rect.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/proxy/ppapi_param_traits.h"
 #include "ppapi/proxy/serialized_flash_menu.h"
 #include "ppapi/proxy/serialized_structs.h"
+#include "ppapi/shared_impl/ppapi_preferences.h"
 
 #define IPC_MESSAGE_START PpapiMsgStart
 
 IPC_STRUCT_TRAITS_BEGIN(PP_Point)
   IPC_STRUCT_TRAITS_MEMBER(x)
   IPC_STRUCT_TRAITS_MEMBER(y)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(PP_Size)
   IPC_STRUCT_TRAITS_MEMBER(height)
   IPC_STRUCT_TRAITS_MEMBER(width)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(PP_Rect)
   IPC_STRUCT_TRAITS_MEMBER(point)
   IPC_STRUCT_TRAITS_MEMBER(size)
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(::ppapi::Preferences)
+  IPC_STRUCT_TRAITS_MEMBER(standard_font_family)
+  IPC_STRUCT_TRAITS_MEMBER(fixed_font_family)
+  IPC_STRUCT_TRAITS_MEMBER(serif_font_family)
+  IPC_STRUCT_TRAITS_MEMBER(sans_serif_font_family)
+  IPC_STRUCT_TRAITS_MEMBER(default_font_size)
+  IPC_STRUCT_TRAITS_MEMBER(default_fixed_font_size)
+IPC_STRUCT_TRAITS_END()
+
 // These are from the browser to the plugin.
 // Loads the given plugin.
 IPC_MESSAGE_CONTROL1(PpapiMsg_LoadPlugin, FilePath /* path */)
 
 // Creates a channel to talk to a renderer. The plugin will respond with
 // PpapiHostMsg_ChannelCreated.
 IPC_MESSAGE_CONTROL2(PpapiMsg_CreateChannel,
                      base::ProcessHandle /* host_process_handle */,
                      int /* renderer_id */)
 
 // Each plugin may be referenced by multiple renderers. We need the instance
 // IDs to be unique within a plugin, despite coming from different renderers,
 // and unique within a renderer, despite going to different plugins. This means
 // that neither the renderer nor the plugin can generate instance IDs without
 // consulting the other.
 //
 // We resolve this by having the renderer generate a unique instance ID inside
 // its process. It then asks the plugin to reserve that ID by sending this sync
 // message. If the plugin has not yet seen this ID, it will remember it as used
 // (to prevent a race condition if another renderer tries to then use the same
 // instance), and set usable as true.
 //
 // If the plugin has already seen the instance ID, it will set usable as false
 // and the renderer must retry a new instance ID.
 IPC_SYNC_MESSAGE_CONTROL1_1(PpapiMsg_ReserveInstanceId,
                             PP_Instance /* instance */,
                             bool /* usable */)
 
+// Passes the WebKit preferences to the plugin.
+IPC_MESSAGE_CONTROL1(PpapiMsg_SetPreferences,
+                     ::ppapi::Preferences)
+
 // Sent in both directions to see if the other side supports the given
 // interface.
 IPC_SYNC_MESSAGE_CONTROL1_1(PpapiMsg_SupportsInterface,
                             std::string /* interface_name */,
                             bool /* result */)
 
 IPC_MESSAGE_CONTROL2(PpapiMsg_ExecuteCallback,
                      uint32 /* serialized_callback */,
                      int32 /* param */)
 
@@ skipping 663 matching lines @@
                            pp::proxy::HostResource /* result */)
 IPC_SYNC_MESSAGE_ROUTED4_3(PpapiHostMsg_ResourceCreation_ImageData,
                            PP_Instance /* instance */,
                            int32 /* format */,
                            PP_Size /* size */,
                            PP_Bool /* init_to_zero */,
                            pp::proxy::HostResource /* result_resource */,
                            std::string /* image_data_desc */,
                            pp::proxy::ImageHandle /* result */)