refactor(windows): clean up Chrome ABE module (#574)

* refactor(abe): remove --abe-key flag and its global state
* refactor(abe): rework scratch protocol and Go/C structure

crypto/windows/abe_native/bootstrap/layout.go

@@ -0,0 +1,43 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs layout_gen.go
+
+package bootstrap
+
+const (
+	MarkerOffset         = 0x28
+	KeyStatusOffset      = 0x29
+	KeyStatusReady       = 0x1
+	ExtractErrCodeOffset = 0x2a
+	HResultOffset        = 0x2c
+	ComErrOffset         = 0x30
+	KeyOffset            = 0x40
+	KeyLen               = 0x20
+
+	ImpLoadLibraryAOffset   = 0x40
+	ImpGetProcAddressOffset = 0x48
+	ImpVirtualAllocOffset   = 0x50
+	ImpVirtualProtectOffset = 0x58
+	ImpNtFlushICOffset      = 0x60
+
+	MarkMZFound      = 0x2
+	MarkImportsOK    = 0x5
+	MarkAllocOK      = 0x6
+	MarkCopied       = 0x7
+	MarkRelocated    = 0x8
+	MarkImportsFixed = 0x9
+	MarkPermissions  = 0xa
+	MarkCacheFlushed = 0xb
+	MarkDone         = 0xff
+	MarkErrImports   = 0xe3
+	MarkErrAlloc     = 0xe4
+
+	ErrOk             = 0x0
+	ErrBasename       = 0x1
+	ErrBrowserUnknown = 0x2
+	ErrEnvMissing     = 0x3
+	ErrBase64         = 0x4
+	ErrBstrAlloc      = 0x5
+	ErrComCreate      = 0x6
+	ErrDecryptData    = 0x7
+	ErrKeyLen         = 0x8
+)