Make the Pepper proxy support in-process font rendering.

ppapi/proxy/resource_creation_proxy.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/resource_creation_proxy.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/proxy/host_resource.h"
 #include "ppapi/proxy/interface_id.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppb_graphics_2d_proxy.h"
+#include "ppapi/proxy/ppb_font_proxy.h"
 #include "ppapi/proxy/ppb_image_data_proxy.h"
 #include "ppapi/c/trusted/ppb_image_data_trusted.h"
+#include "ppapi/shared_impl/font_impl.h"
 #include "ppapi/shared_impl/function_group_base.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_image_data_api.h"
 
 using ::ppapi::thunk::ResourceCreationAPI;
 
 namespace pp {
 namespace proxy {
 
 ResourceCreationProxy::ResourceCreationProxy(Dispatcher* dispatcher)
     : dispatcher_(dispatcher) {
 }
 
 ResourceCreationProxy::~ResourceCreationProxy() {
 }
 
 ::ppapi::thunk::ResourceCreationAPI*
 ResourceCreationProxy::AsResourceCreation() {
   return this;
 }
 
+PP_Resource ResourceCreationProxy::CreateFontObject(
+    PP_Instance instance,
+    const PP_FontDescription_Dev* description) {
+  if (!pp::shared_impl::FontImpl::IsPPFontDescriptionValid(*description))
+    return 0;
+
+  // See the comment above Font's constructor for why we do this.
+  HostResource resource;
+  resource.SetHostResource(instance, 0);
+
+  linked_ptr<Font> object(new Font(resource, *description));
+  return PluginResourceTracker::GetInstance()->AddResource(object);
+}
+
 PP_Resource ResourceCreationProxy::CreateGraphics2D(PP_Instance pp_instance,
                                                     const PP_Size& size,
                                                     PP_Bool is_always_opaque) {
   PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(pp_instance);
   if (!dispatcher)
     return PP_ERROR_BADARGUMENT;
 
   HostResource result;
   dispatcher->Send(new PpapiHostMsg_ResourceCreation_Graphics2D(
       INTERFACE_ID_RESOURCE_CREATION, pp_instance, size, is_always_opaque,
@@ skipping 72 matching lines @@
   if (enter.failed())
     return;
 
   PP_Resource resource = enter.functions()->CreateImageData(
       instance, static_cast<PP_ImageDataFormat>(format), size, init_to_zero);
   if (!resource)
     return;
   result->SetHostResource(instance, resource);
 
   // Get the description, it's just serialized as a string.
-  ppapi::thunk::EnterResource<ppapi::thunk::PPB_ImageData_API>
-      enter_resource(resource, false);
+  ppapi::thunk::EnterResource<ppapi::thunk::PPB_ImageData_API> enter_resource(
+      resource, false);
   PP_ImageDataDesc desc;
-  if (enter_resource.object()->Describe(&desc)) {
+  if (enter_resource.object()->Describe(&desc) == PP_TRUE) {
     image_data_desc->resize(sizeof(PP_ImageDataDesc));
     memcpy(&(*image_data_desc)[0], &desc, sizeof(PP_ImageDataDesc));
   }
 
   // Get the shared memory handle.
   const PPB_ImageDataTrusted* trusted =
       reinterpret_cast<const PPB_ImageDataTrusted*>(
           dispatcher_->GetLocalInterface(PPB_IMAGEDATA_TRUSTED_INTERFACE));
   uint32_t byte_count = 0;
   if (trusted) {
     int32_t handle;
     if (trusted->GetSharedMemory(resource, &handle, &byte_count) == PP_OK) {
 #if defined(OS_WIN)
       pp::proxy::ImageHandle ih = ImageData::HandleFromInt(handle);
       *result_image_handle = dispatcher_->ShareHandleWithRemote(ih, false);
 #else
       *result_image_handle = ImageData::HandleFromInt(handle);
 #endif
     }
   }
 }
 
 }  // namespace proxy
 }  // namespace pp