ppapi/proxy/interface_list.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ppapi/proxy/interface_list.h"
   6
   7 #include "base/hash.h"
   8 #include "base/lazy_instance.h"
   9 #include "base/memory/singleton.h"
  10 #include "ppapi/c/dev/ppb_audio_input_dev.h"
  11 #include "ppapi/c/dev/ppb_buffer_dev.h"
  12 #include "ppapi/c/dev/ppb_char_set_dev.h"
  13 #include "ppapi/c/dev/ppb_crypto_dev.h"
  14 #include "ppapi/c/dev/ppb_cursor_control_dev.h"
  15 #include "ppapi/c/dev/ppb_device_ref_dev.h"
  16 #include "ppapi/c/dev/ppb_font_dev.h"
  17 #include "ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.h"
  18 #include "ppapi/c/dev/ppb_ime_input_event_dev.h"
  19 #include "ppapi/c/dev/ppb_memory_dev.h"
  20 #include "ppapi/c/dev/ppb_opengles2ext_dev.h"
  21 #include "ppapi/c/dev/ppb_printing_dev.h"
  22 #include "ppapi/c/dev/ppb_scrollbar_dev.h"
  23 #include "ppapi/c/dev/ppb_text_input_dev.h"
  24 #include "ppapi/c/dev/ppb_trace_event_dev.h"
  25 #include "ppapi/c/dev/ppb_truetype_font_dev.h"
  26 #include "ppapi/c/dev/ppb_url_util_dev.h"
  27 #include "ppapi/c/dev/ppb_var_deprecated.h"
  28 #include "ppapi/c/dev/ppb_video_capture_dev.h"
  29 #include "ppapi/c/dev/ppb_view_dev.h"
  30 #include "ppapi/c/dev/ppb_widget_dev.h"
  31 #include "ppapi/c/dev/ppb_zoom_dev.h"
  32 #include "ppapi/c/ppb_audio.h"
  33 #include "ppapi/c/ppb_audio_buffer.h"
  34 #include "ppapi/c/ppb_audio_config.h"
  35 #include "ppapi/c/ppb_compositor.h"
  36 #include "ppapi/c/ppb_compositor_layer.h"
  37 #include "ppapi/c/ppb_console.h"
  38 #include "ppapi/c/ppb_core.h"
  39 #include "ppapi/c/ppb_file_io.h"
  40 #include "ppapi/c/ppb_file_ref.h"
  41 #include "ppapi/c/ppb_file_system.h"
  42 #include "ppapi/c/ppb_fullscreen.h"
  43 #include "ppapi/c/ppb_graphics_2d.h"
  44 #include "ppapi/c/ppb_host_resolver.h"
  45 #include "ppapi/c/ppb_image_data.h"
  46 #include "ppapi/c/ppb_input_event.h"
  47 #include "ppapi/c/ppb_instance.h"
  48 #include "ppapi/c/ppb_media_stream_audio_track.h"
  49 #include "ppapi/c/ppb_media_stream_video_track.h"
  50 #include "ppapi/c/ppb_message_loop.h"
  51 #include "ppapi/c/ppb_messaging.h"
  52 #include "ppapi/c/ppb_mouse_lock.h"
  53 #include "ppapi/c/ppb_net_address.h"
  54 #include "ppapi/c/ppb_network_list.h"
  55 #include "ppapi/c/ppb_network_monitor.h"
  56 #include "ppapi/c/ppb_network_proxy.h"
  57 #include "ppapi/c/ppb_opengles2.h"
  58 #include "ppapi/c/ppb_tcp_socket.h"
  59 #include "ppapi/c/ppb_text_input_controller.h"
  60 #include "ppapi/c/ppb_udp_socket.h"
  61 #include "ppapi/c/ppb_url_loader.h"
  62 #include "ppapi/c/ppb_url_request_info.h"
  63 #include "ppapi/c/ppb_url_response_info.h"
  64 #include "ppapi/c/ppb_var.h"
  65 #include "ppapi/c/ppb_var_array.h"
  66 #include "ppapi/c/ppb_var_array_buffer.h"
  67 #include "ppapi/c/ppb_var_dictionary.h"
  68 #include "ppapi/c/ppb_video_decoder.h"
  69 #include "ppapi/c/ppb_video_encoder.h"
  70 #include "ppapi/c/ppb_video_frame.h"
  71 #include "ppapi/c/ppb_view.h"
  72 #include "ppapi/c/pp_errors.h"
  73 #include "ppapi/c/ppp_instance.h"
  74 #include "ppapi/c/private/ppb_camera_capabilities_private.h"
  75 #include "ppapi/c/private/ppb_camera_device_private.h"
  76 #include "ppapi/c/private/ppb_content_decryptor_private.h"
  77 #include "ppapi/c/private/ppb_ext_crx_file_system_private.h"
  78 #include "ppapi/c/private/ppb_file_io_private.h"
  79 #include "ppapi/c/private/ppb_file_ref_private.h"
  80 #include "ppapi/c/private/ppb_find_private.h"
  81 #include "ppapi/c/private/ppb_flash_clipboard.h"
  82 #include "ppapi/c/private/ppb_flash_file.h"
  83 #include "ppapi/c/private/ppb_flash_font_file.h"
  84 #include "ppapi/c/private/ppb_flash_fullscreen.h"
  85 #include "ppapi/c/private/ppb_flash.h"
  86 #include "ppapi/c/private/ppb_flash_device_id.h"
  87 #include "ppapi/c/private/ppb_flash_drm.h"
  88 #include "ppapi/c/private/ppb_flash_menu.h"
  89 #include "ppapi/c/private/ppb_flash_message_loop.h"
  90 #include "ppapi/c/private/ppb_flash_print.h"
  91 #include "ppapi/c/private/ppb_host_resolver_private.h"
  92 #include "ppapi/c/private/ppb_input_event_private.h"
  93 #include "ppapi/c/private/ppb_isolated_file_system_private.h"
  94 #include "ppapi/c/private/ppb_net_address_private.h"
  95 #include "ppapi/c/private/ppb_output_protection_private.h"
  96 #include "ppapi/c/private/ppb_pdf.h"
  97 #include "ppapi/c/private/ppb_platform_verification_private.h"
  98 #include "ppapi/c/private/ppb_talk_private.h"
  99 #include "ppapi/c/private/ppb_tcp_server_socket_private.h"
 100 #include "ppapi/c/private/ppb_tcp_socket_private.h"
 101 #include "ppapi/c/private/ppb_testing_private.h"
 102 #include "ppapi/c/private/ppb_udp_socket_private.h"
 103 #include "ppapi/c/private/ppb_uma_private.h"
 104 #include "ppapi/c/private/ppb_video_destination_private.h"
 105 #include "ppapi/c/private/ppb_video_source_private.h"
 106 #include "ppapi/c/private/ppb_x509_certificate_private.h"
 107 #include "ppapi/c/private/ppp_content_decryptor_private.h"
 108 #include "ppapi/c/trusted/ppb_broker_trusted.h"
 109 #include "ppapi/c/trusted/ppb_browser_font_trusted.h"
 110 #include "ppapi/c/trusted/ppb_char_set_trusted.h"
 111 #include "ppapi/c/trusted/ppb_file_chooser_trusted.h"
 112 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 113 #include "ppapi/proxy/interface_proxy.h"
 114 #include "ppapi/proxy/plugin_globals.h"
 115 #include "ppapi/proxy/ppapi_messages.h"
 116 #include "ppapi/proxy/ppb_audio_proxy.h"
 117 #include "ppapi/proxy/ppb_broker_proxy.h"
 118 #include "ppapi/proxy/ppb_buffer_proxy.h"
 119 #include "ppapi/proxy/ppb_core_proxy.h"
 120 #include "ppapi/proxy/ppb_flash_message_loop_proxy.h"
 121 #include "ppapi/proxy/ppb_graphics_3d_proxy.h"
 122 #include "ppapi/proxy/ppb_image_data_proxy.h"
 123 #include "ppapi/proxy/ppb_instance_proxy.h"
 124 #include "ppapi/proxy/ppb_message_loop_proxy.h"
 125 #include "ppapi/proxy/ppb_testing_proxy.h"
 126 #include "ppapi/proxy/ppb_var_deprecated_proxy.h"
 127 #include "ppapi/proxy/ppb_video_decoder_proxy.h"
 128 #include "ppapi/proxy/ppb_x509_certificate_private_proxy.h"
 129 #include "ppapi/proxy/ppp_class_proxy.h"
 130 #include "ppapi/proxy/ppp_content_decryptor_private_proxy.h"
 131 #include "ppapi/proxy/ppp_find_proxy.h"
 132 #include "ppapi/proxy/ppp_graphics_3d_proxy.h"
 133 #include "ppapi/proxy/ppp_input_event_proxy.h"
 134 #include "ppapi/proxy/ppp_instance_private_proxy.h"
 135 #include "ppapi/proxy/ppp_instance_proxy.h"
 136 #include "ppapi/proxy/ppp_messaging_proxy.h"
 137 #include "ppapi/proxy/ppp_mouse_lock_proxy.h"
 138 #include "ppapi/proxy/ppp_pdf_proxy.h"
 139 #include "ppapi/proxy/ppp_printing_proxy.h"
 140 #include "ppapi/proxy/ppp_text_input_proxy.h"
 141 #include "ppapi/proxy/ppp_video_decoder_proxy.h"
 142 #include "ppapi/proxy/resource_creation_proxy.h"
 143 #include "ppapi/shared_impl/ppb_opengles2_shared.h"
 144 #include "ppapi/shared_impl/ppb_var_shared.h"
 145 #include "ppapi/thunk/thunk.h"
 146
 147 // Helper to get the proxy name PPB_Foo_Proxy given the API name PPB_Foo.
 148 #define PROXY_CLASS_NAME(api_name) api_name##_Proxy
 149
 150 // Helper to get the interface ID PPB_Foo_Proxy::kApiID given the API
 151 // name PPB_Foo.
 152 #define PROXY_API_ID(api_name) PROXY_CLASS_NAME(api_name)::kApiID
 153
 154 // Helper to get the name of the templatized factory function.
 155 #define PROXY_FACTORY_NAME(api_name) ProxyFactory<PROXY_CLASS_NAME(api_name)>
 156
 157 // Helper to get the name of the thunk GetPPB_Foo_1_0_Thunk given the interface
 158 // struct name PPB_Foo_1_0.
 159 #define INTERFACE_THUNK_NAME(iface_struct) thunk::Get##iface_struct##_Thunk
 160
 161 namespace ppapi {
 162 namespace proxy {
 163
 164 namespace {
 165
 166 template<typename ProxyClass>
 167 InterfaceProxy* ProxyFactory(Dispatcher* dispatcher) {
 168   return new ProxyClass(dispatcher);
 169 }
 170
 171 base::LazyInstance<PpapiPermissions> g_process_global_permissions;
 172
 173 }  // namespace
 174
 175 InterfaceList::InterfaceList() {
 176   memset(id_to_factory_, 0, sizeof(id_to_factory_));
 177
 178   // Register the API factories for each of the API types. This calls AddProxy
 179   // for each InterfaceProxy type we support.
 180   #define PROXIED_API(api_name) \
 181       AddProxy(PROXY_API_ID(api_name), &PROXY_FACTORY_NAME(api_name));
 182
 183   // Register each proxied interface by calling AddPPB for each supported
 184   // interface. Set current_required_permission to the appropriate value for
 185   // the value you want expanded by this macro.
 186   #define PROXIED_IFACE(iface_str, iface_struct) \
 187       AddPPB(iface_str, \
 188              INTERFACE_THUNK_NAME(iface_struct)(), \
 189              current_required_permission);
 190
 191   {
 192     Permission current_required_permission = PERMISSION_NONE;
 193     #include "ppapi/thunk/interfaces_ppb_private_no_permissions.h"
 194     #include "ppapi/thunk/interfaces_ppb_public_stable.h"
 195   }
 196   {
 197     Permission current_required_permission = PERMISSION_DEV;
 198     #include "ppapi/thunk/interfaces_ppb_public_dev.h"
 199   }
 200   {
 201     Permission current_required_permission = PERMISSION_PRIVATE;
 202     #include "ppapi/thunk/interfaces_ppb_private.h"
 203   }
 204   {
 205 #if !defined(OS_NACL)
 206     Permission current_required_permission = PERMISSION_FLASH;
 207     #include "ppapi/thunk/interfaces_ppb_private_flash.h"
 208 #endif  // !defined(OS_NACL)
 209   }
 210   {
 211     Permission current_required_permission = PERMISSION_DEV_CHANNEL;
 212     #include "ppapi/thunk/interfaces_ppb_public_dev_channel.h"
 213   }
 214
 215   #undef PROXIED_API
 216   #undef PROXIED_IFACE
 217
 218   // Manually add some special proxies. Some of these don't have interfaces
 219   // that they support, so aren't covered by the macros above, but have proxies
 220   // for message routing. Others have different implementations between the
 221   // proxy and the impl and there's no obvious message routing.
 222   AddProxy(API_ID_RESOURCE_CREATION, &ResourceCreationProxy::Create);
 223   AddProxy(API_ID_PPP_CLASS, &PPP_Class_Proxy::Create);
 224   AddPPB(PPB_CORE_INTERFACE_1_0,
 225          PPB_Core_Proxy::GetPPB_Core_Interface(), PERMISSION_NONE);
 226   AddPPB(PPB_MESSAGELOOP_INTERFACE_1_0,
 227          PPB_MessageLoop_Proxy::GetInterface(), PERMISSION_NONE);
 228   AddPPB(PPB_OPENGLES2_INTERFACE_1_0,
 229          PPB_OpenGLES2_Shared::GetInterface(), PERMISSION_NONE);
 230   AddPPB(PPB_OPENGLES2_INSTANCEDARRAYS_INTERFACE_1_0,
 231          PPB_OpenGLES2_Shared::GetInstancedArraysInterface(), PERMISSION_NONE);
 232   AddPPB(PPB_OPENGLES2_FRAMEBUFFERBLIT_INTERFACE_1_0,
 233          PPB_OpenGLES2_Shared::GetFramebufferBlitInterface(), PERMISSION_NONE);
 234   AddPPB(PPB_OPENGLES2_FRAMEBUFFERMULTISAMPLE_INTERFACE_1_0,
 235          PPB_OpenGLES2_Shared::GetFramebufferMultisampleInterface(),
 236          PERMISSION_NONE);
 237   AddPPB(PPB_OPENGLES2_CHROMIUMENABLEFEATURE_INTERFACE_1_0,
 238          PPB_OpenGLES2_Shared::GetChromiumEnableFeatureInterface(),
 239          PERMISSION_NONE);
 240   AddPPB(PPB_OPENGLES2_CHROMIUMMAPSUB_INTERFACE_1_0,
 241          PPB_OpenGLES2_Shared::GetChromiumMapSubInterface(), PERMISSION_NONE);
 242   AddPPB(PPB_OPENGLES2_CHROMIUMMAPSUB_DEV_INTERFACE_1_0,
 243          PPB_OpenGLES2_Shared::GetChromiumMapSubInterface(), PERMISSION_NONE);
 244   AddPPB(PPB_OPENGLES2_QUERY_INTERFACE_1_0,
 245          PPB_OpenGLES2_Shared::GetQueryInterface(), PERMISSION_NONE);
 246   AddPPB(PPB_OPENGLES2_VERTEXARRAYOBJECT_INTERFACE_1_0,
 247          PPB_OpenGLES2_Shared::GetVertexArrayObjectInterface(),
 248          PERMISSION_NONE);
 249   AddPPB(PPB_OPENGLES2_DRAWBUFFERS_DEV_INTERFACE_1_0,
 250          PPB_OpenGLES2_Shared::GetDrawBuffersInterface(),
 251          PERMISSION_DEV);
 252   AddPPB(PPB_VAR_ARRAY_BUFFER_INTERFACE_1_0,
 253          PPB_Var_Shared::GetVarArrayBufferInterface1_0(),
 254          PERMISSION_NONE);
 255   AddPPB(PPB_VAR_INTERFACE_1_2,
 256          PPB_Var_Shared::GetVarInterface1_2(), PERMISSION_NONE);
 257   AddPPB(PPB_VAR_INTERFACE_1_1,
 258          PPB_Var_Shared::GetVarInterface1_1(), PERMISSION_NONE);
 259   AddPPB(PPB_VAR_INTERFACE_1_0,
 260          PPB_Var_Shared::GetVarInterface1_0(), PERMISSION_NONE);
 261
 262 #if !defined(OS_NACL)
 263   // PPB (browser) interfaces.
 264   // Do not add more stuff here, they should be added to interface_list*.h
 265   // TODO(brettw) remove these.
 266   AddProxy(API_ID_PPB_INSTANCE_PRIVATE, &ProxyFactory<PPB_Instance_Proxy>);
 267   AddPPB(PPB_INSTANCE_PRIVATE_INTERFACE_0_1,
 268          thunk::GetPPB_Instance_Private_0_1_Thunk(),
 269          PERMISSION_PRIVATE);
 270
 271   AddProxy(API_ID_PPB_VAR_DEPRECATED, &ProxyFactory<PPB_Var_Deprecated_Proxy>);
 272   AddPPB(PPB_VAR_DEPRECATED_INTERFACE,
 273          PPB_Var_Deprecated_Proxy::GetProxyInterface(), PERMISSION_DEV);
 274
 275   // TODO(tomfinegan): Figure out where to put these once we refactor things
 276   // to load the PPP interface struct from the PPB interface.
 277   AddProxy(API_ID_PPP_CONTENT_DECRYPTOR_PRIVATE,
 278            &ProxyFactory<PPP_ContentDecryptor_Private_Proxy>);
 279   AddPPP(PPP_CONTENTDECRYPTOR_PRIVATE_INTERFACE,
 280          PPP_ContentDecryptor_Private_Proxy::GetProxyInterface());
 281 #endif
 282   AddProxy(API_ID_PPB_TESTING, &ProxyFactory<PPB_Testing_Proxy>);
 283   AddPPB(PPB_TESTING_PRIVATE_INTERFACE,
 284          PPB_Testing_Proxy::GetProxyInterface(), PERMISSION_TESTING);
 285
 286   // PPP (plugin) interfaces.
 287   // TODO(brettw) move these to interface_list*.h
 288   AddProxy(API_ID_PPP_GRAPHICS_3D, &ProxyFactory<PPP_Graphics3D_Proxy>);
 289   AddPPP(PPP_GRAPHICS_3D_INTERFACE, PPP_Graphics3D_Proxy::GetProxyInterface());
 290   AddProxy(API_ID_PPP_INPUT_EVENT, &ProxyFactory<PPP_InputEvent_Proxy>);
 291   AddPPP(PPP_INPUT_EVENT_INTERFACE, PPP_InputEvent_Proxy::GetProxyInterface());
 292   AddProxy(API_ID_PPP_INSTANCE, &ProxyFactory<PPP_Instance_Proxy>);
 293 #if !defined(OS_NACL)
 294   AddPPP(PPP_INSTANCE_INTERFACE_1_1,
 295          PPP_Instance_Proxy::GetInstanceInterface());
 296   AddProxy(API_ID_PPP_INSTANCE_PRIVATE,
 297            &ProxyFactory<PPP_Instance_Private_Proxy>);
 298   AddPPP(PPP_INSTANCE_PRIVATE_INTERFACE,
 299          PPP_Instance_Private_Proxy::GetProxyInterface());
 300 #endif
 301   AddProxy(API_ID_PPP_MESSAGING, &ProxyFactory<PPP_Messaging_Proxy>);
 302   AddProxy(API_ID_PPP_MOUSE_LOCK, &ProxyFactory<PPP_MouseLock_Proxy>);
 303   AddPPP(PPP_MOUSELOCK_INTERFACE, PPP_MouseLock_Proxy::GetProxyInterface());
 304   AddProxy(API_ID_PPP_PRINTING, &ProxyFactory<PPP_Printing_Proxy>);
 305   AddPPP(PPP_PRINTING_DEV_INTERFACE, PPP_Printing_Proxy::GetProxyInterface());
 306   AddProxy(API_ID_PPP_TEXT_INPUT, &ProxyFactory<PPP_TextInput_Proxy>);
 307   AddPPP(PPP_TEXTINPUT_DEV_INTERFACE, PPP_TextInput_Proxy::GetProxyInterface());
 308 #if !defined(OS_NACL)
 309   AddProxy(API_ID_PPP_PDF, &ProxyFactory<PPP_Pdf_Proxy>);
 310   AddPPP(PPP_PDF_INTERFACE, PPP_Pdf_Proxy::GetProxyInterface());
 311   AddProxy(API_ID_PPP_FIND_PRIVATE, &ProxyFactory<PPP_Find_Proxy>);
 312   AddPPP(PPP_FIND_PRIVATE_INTERFACE, PPP_Find_Proxy::GetProxyInterface());
 313   AddProxy(API_ID_PPP_VIDEO_DECODER_DEV, &ProxyFactory<PPP_VideoDecoder_Proxy>);
 314   AddPPP(PPP_VIDEODECODER_DEV_INTERFACE,
 315          PPP_VideoDecoder_Proxy::GetProxyInterface());
 316 #endif
 317 }
 318
 319 InterfaceList::~InterfaceList() {
 320 }
 321
 322 // static
 323 InterfaceList* InterfaceList::GetInstance() {
 324   // CAUTION: This function is called without the ProxyLock to avoid excessive
 325   // excessive locking from C++ wrappers. (See also GetBrowserInterface.)
 326   return Singleton<InterfaceList>::get();
 327 }
 328
 329 // static
 330 void InterfaceList::SetProcessGlobalPermissions(
 331     const PpapiPermissions& permissions) {
 332   g_process_global_permissions.Get() = permissions;
 333 }
 334
 335 InterfaceProxy::Factory InterfaceList::GetFactoryForID(ApiID id) const {
 336   int index = static_cast<int>(id);
 337   static_assert(API_ID_NONE == 0, "none must be zero");
 338   if (id <= 0 || id >= API_ID_COUNT)
 339     return NULL;
 340   return id_to_factory_[index];
 341 }
 342
 343 const void* InterfaceList::GetInterfaceForPPB(const std::string& name) {
 344   // CAUTION: This function is called without the ProxyLock to avoid excessive
 345   // excessive locking from C++ wrappers. (See also GetBrowserInterface.)
 346   NameToInterfaceInfoMap::iterator found =
 347       name_to_browser_info_.find(name);
 348   if (found == name_to_browser_info_.end())
 349     return NULL;
 350
 351   if (g_process_global_permissions.Get().HasPermission(
 352           found->second->required_permission())) {
 353     // Only log interface use once per plugin.
 354     found->second->LogWithUmaOnce(
 355         PluginGlobals::Get()->GetBrowserSender(), name);
 356     return found->second->iface();
 357   }
 358   return NULL;
 359 }
 360
 361 const void* InterfaceList::GetInterfaceForPPP(const std::string& name) const {
 362   NameToInterfaceInfoMap::const_iterator found =
 363       name_to_plugin_info_.find(name);
 364   if (found == name_to_plugin_info_.end())
 365     return NULL;
 366   return found->second->iface();
 367 }
 368
 369 void InterfaceList::InterfaceInfo::LogWithUmaOnce(
 370     IPC::Sender* sender, const std::string& name) {
 371   {
 372     base::AutoLock acquire(sent_to_uma_lock_);
 373     if (sent_to_uma_)
 374       return;
 375     sent_to_uma_ = true;
 376   }
 377   int hash = InterfaceList::HashInterfaceName(name);
 378   PluginGlobals::Get()->GetBrowserSender()->Send(
 379       new PpapiHostMsg_LogInterfaceUsage(hash));
 380 }
 381
 382 void InterfaceList::AddProxy(ApiID id,
 383                              InterfaceProxy::Factory factory) {
 384   // For interfaces with no corresponding _Proxy objects, the macros will
 385   // generate calls to this function with API_ID_NONE. This means we
 386   // should just skip adding a factory for these functions.
 387   if (id == API_ID_NONE)
 388     return;
 389
 390   // The factory should be an exact dupe of the one we already have if it
 391   // has already been registered before.
 392   int index = static_cast<int>(id);
 393   DCHECK(!id_to_factory_[index] || id_to_factory_[index] == factory);
 394
 395   id_to_factory_[index] = factory;
 396 }
 397
 398 void InterfaceList::AddPPB(const char* name,
 399                            const void* iface,
 400                            Permission perm) {
 401   DCHECK(name_to_browser_info_.find(name) == name_to_browser_info_.end());
 402   name_to_browser_info_.add(
 403       name, scoped_ptr<InterfaceInfo>(new InterfaceInfo(iface, perm)));
 404 }
 405
 406 void InterfaceList::AddPPP(const char* name,
 407                            const void* iface) {
 408   DCHECK(name_to_plugin_info_.find(name) == name_to_plugin_info_.end());
 409   name_to_plugin_info_.add(
 410       name,
 411       scoped_ptr<InterfaceInfo>(new InterfaceInfo(iface, PERMISSION_NONE)));
 412 }
 413
 414 int InterfaceList::HashInterfaceName(const std::string& name) {
 415   uint32 data = base::Hash(name.c_str(), name.size());
 416   // Strip off the signed bit because UMA doesn't support negative values,
 417   // but takes a signed int as input.
 418   return static_cast<int>(data & 0x7fffffff);
 419 }
 420
 421 }  // namespace proxy
 422 }  // namespace ppapi