PPAPI: implement GetSupportedPreviewSizes

ppapi/proxy/BUILD.gn

 # Copyright 2015 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.
 
 config("proxy_implementation") {
   defines = [ "PPAPI_PROXY_IMPLEMENTATION" ]
 }
 
 component("proxy") {
   output_name = "ppapi_proxy"
@@ skipping 194 matching lines @@
       "../nacl_irt/ppapi_dispatcher.h",
     ]
   } else {
     sources += [
       "audio_input_resource.cc",
       "audio_input_resource.h",
       "broker_dispatcher.cc",
       "broker_dispatcher.h",
       "browser_font_singleton_resource.cc",
       "browser_font_singleton_resource.h",
+      "camera_capabilities_resource.cc",
+      "camera_capabilities_resource.h",
       "device_enumeration_resource_helper.cc",
       "device_enumeration_resource_helper.h",
       "flash_clipboard_resource.cc",
       "flash_clipboard_resource.h",
       "flash_drm_resource.cc",
       "flash_drm_resource.h",
       "flash_file_resource.cc",
       "flash_file_resource.h",
       "flash_font_file_resource.cc",
       "flash_font_file_resource.h",
       "flash_fullscreen_resource.cc",
       "flash_fullscreen_resource.h",
       "flash_menu_resource.cc",
       "flash_menu_resource.h",
       "flash_resource.cc",
       "flash_resource.h",
       "host_dispatcher.cc",
       "host_dispatcher.h",
       "host_var_serialization_rules.cc",
       "host_var_serialization_rules.h",
+      "image_capture_resource.cc",
+      "image_capture_resource.h",
       "pdf_resource.cc",
       "pdf_resource.h",
       "platform_verification_private_resource.cc",
       "platform_verification_private_resource.h",
       "ppb_broker_proxy.cc",
       "ppb_broker_proxy.h",
       "ppb_buffer_proxy.cc",
       "ppb_buffer_proxy.h",
       "ppb_flash_message_loop_proxy.cc",
       "ppb_flash_message_loop_proxy.h",
@@ skipping 96 matching lines @@
   deps = [
     "//base/test:test_support",
     "//ipc",
     "//ipc:test_support",
     "//ppapi/proxy",
     "//ppapi/shared_impl",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }