WebCrypto: Add framework for AlgorithmIdentifier normalization.

Source/modules/modules.gypi

 {
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
     # ways.
     'extra_blink_module_idl_files': [],
     'extra_blink_module_files': [],
 
     'modules_idl_files': [
       '<@(extra_blink_module_idl_files)',
+      'crypto/AesCbcParams.idl',
+      'crypto/AesKeyGenParams.idl',
+      'crypto/Algorithm.idl',
       'crypto/Crypto.idl',
+      'crypto/CryptoOperation.idl',
       'crypto/SubtleCrypto.idl',
       'crypto/WindowCrypto.idl',
       'crypto/WorkerGlobalScopeCrypto.idl',
       'crypto/WorkerCrypto.idl',
       'device_orientation/DeviceAcceleration.idl',
       'device_orientation/DeviceMotionEvent.idl',
       'device_orientation/DeviceRotationRate.idl',
       'donottrack/NavigatorDoNotTrack.idl',
       'encryptedmedia/MediaKeyMessageEvent.idl',
       'encryptedmedia/MediaKeyNeededEvent.idl',
@@ skipping 161 matching lines @@
       'webmidi/MIDIMessageEvent.idl',
       'webmidi/MIDIOutput.idl',
       'webmidi/MIDIPort.idl',
       'webmidi/MIDISuccessCallback.idl',
       'webmidi/NavigatorWebMIDI.idl',
       'websockets/CloseEvent.idl',
       'websockets/WebSocket.idl',
     ],
     'modules_files': [
       '<@(extra_blink_module_files)',
+      'crypto/AesCbcParams.cpp',
+      'crypto/AesCbcParams.h',
+      'crypto/AesKeyGenParams.cpp',
+      'crypto/AesKeyGenParams.h',
+      'crypto/Algorithm.cpp',
+      'crypto/Algorithm.h',
       'crypto/Crypto.cpp',
       'crypto/Crypto.h',
+      'crypto/CryptoOperation.cpp',
+      'crypto/CryptoOperation.h',
       'crypto/DOMWindowCrypto.cpp',
       'crypto/DOMWindowCrypto.h',
+      'crypto/NormalizeAlgorithm.cpp',
+      'crypto/NormalizeAlgorithm.h',
       'crypto/SubtleCrypto.cpp',
       'crypto/SubtleCrypto.h',
       'crypto/WorkerGlobalScopeCrypto.cpp',
       'crypto/WorkerGlobalScopeCrypto.h',
       'crypto/WorkerCrypto.cpp',
       'crypto/WorkerCrypto.h',
       'device_orientation/DeviceAcceleration.cpp',
       'device_orientation/DeviceAcceleration.h',
       'device_orientation/DeviceMotionClient.h',
       'device_orientation/DeviceMotionController.cpp',
@@ skipping 485 matching lines @@
       'websockets/WorkerThreadableWebSocketChannel.h',
     ],
     'modules_unittest_files': [
       'websockets/WebSocketDeflaterTest.cpp',
       'websockets/WebSocketExtensionDispatcherTest.cpp',
       'websockets/WebSocketExtensionParserTest.cpp',
       'websockets/WebSocketPerMessageDeflateTest.cpp',
     ],
   },
 }