Add CefRegisterWidevineCdm function and remove component updater support (issue #2009)

Mac: Check in widevinecdmadapter.plugin binary until Widevine GN build errors are resolved (https://crbug.com/626436).

include/capi/cef_web_plugin_capi.h

@@ -127,6 +127,29 @@ typedef struct _cef_web_plugin_unstable_callback_t {
 } cef_web_plugin_unstable_callback_t;
 
 
+///
+// Implement this structure to receive notification when CDM registration is
+// complete. The functions of this structure will be called on the browser
+// process UI thread.
+///
+typedef struct _cef_register_cdm_callback_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_t base;
+
+  ///
+  // Method that will be called when CDM registration is complete. |result| will
+  // be CEF_CDM_REGISTRATION_ERROR_NONE if registration completed successfully.
+  // Otherwise, |result| and |error_message| will contain additional information
+  // about why registration failed.
+  ///
+  void (CEF_CALLBACK *on_cdm_registration_complete)(
+      struct _cef_register_cdm_callback_t* self,
+      cef_cdm_registration_error_t result, const cef_string_t* error_message);
+} cef_register_cdm_callback_t;
+
+
 ///
 // Visit web plugin information. Can be called on any thread in the browser
 // process.
@@ -161,6 +184,54 @@ CEF_EXPORT void cef_register_web_plugin_crash(const cef_string_t* path);
 CEF_EXPORT void cef_is_web_plugin_unstable(const cef_string_t* path,
     cef_web_plugin_unstable_callback_t* callback);
 
+///
+// Register the Widevine CDM plugin.
+//
+// The client application is responsible for downloading an appropriate
+// platform-specific CDM binary distribution from Google, extracting the
+// contents, and building the required directory structure on the local machine.
+// The cef_browser_host_t::StartDownload function and CefZipArchive structure
+// can be used to implement this functionality in CEF. Contact Google via
+// https://www.widevine.com/contact.html for details on CDM download.
+//
+// |path| is a directory that must contain the following files:
+//   1. manifest.json file from the CDM binary distribution (see below).
+//   2. widevinecdm file from the CDM binary distribution (e.g.
+//      widevinecdm.dll on on Windows, libwidevinecdm.dylib on OS X,
+//      libwidevinecdm.so on Linux).
+//   3. widevidecdmadapter file from the CEF binary distribution (e.g.
+//      widevinecdmadapter.dll on Windows, widevinecdmadapter.plugin on OS X,
+//      libwidevinecdmadapter.so on Linux).
+//
+// If any of these files are missing or if the manifest file has incorrect
+// contents the registration will fail and |callback| will receive a |result|
+// value of CEF_CDM_REGISTRATION_ERROR_INCORRECT_CONTENTS.
+//
+// The manifest.json file must contain the following keys:
+//   A. "os": Supported OS (e.g. "mac", "win" or "linux").
+//   B. "arch": Supported architecture (e.g. "ia32" or "x64").
+//   C. "x-cdm-module-versions": Module API version (e.g. "4").
+//   D. "x-cdm-interface-versions": Interface API version (e.g. "8").
+//   E. "x-cdm-host-versions": Host API version (e.g. "8").
+//   F. "version": CDM version (e.g. "1.4.8.903").
+//   G. "x-cdm-codecs": List of supported codecs (e.g. "vp8,vp9.0,avc1").
+//
+// A through E are used to verify compatibility with the current Chromium
+// version. If the CDM is not compatible the registration will fail and
+// |callback| will receive a |result| value of
+// CEF_CDM_REGISTRATION_ERROR_INCOMPATIBLE.
+//
+// |callback| will be executed asynchronously once registration is complete.
+//
+// On Linux this function must be called before cef_initialize() and the
+// registration cannot be changed during runtime. If registration is not
+// supported at the time that cef_register_widevine_cdm() is called then
+// |callback| will receive a |result| value of
+// CEF_CDM_REGISTRATION_ERROR_NOT_SUPPORTED.
+///
+CEF_EXPORT void cef_register_widevine_cdm(const cef_string_t* path,
+    cef_register_cdm_callback_t* callback);
+
 #ifdef __cplusplus
 }
 #endif