Add shardtree crate

Resolves brave/brave-browser#40408

DEPS

@@ -44,7 +44,7 @@ deps = {
     "url": "https://github.com/ronaldoussoren/macholib.git@36a6777ccd0891c5d1b44ba885573d7c90740015",
     "condition": "checkout_mac",
   },
-  "components/brave_wallet/browser/zcash/rust/librustzcash/src": "https://github.com/brave/librustzcash.git@4d44f5dc3429dce7df37359b8b3c4716807770ea",
+  "components/brave_wallet/browser/zcash/rust/librustzcash/src": "https://github.com/brave/librustzcash.git@5b496c6ead39a0e0f32337f9b6bbf63e7ce92830",
 }
 
 recursedeps = [

components/brave_wallet/browser/zcash/rust/BUILD.gn

@@ -67,13 +67,15 @@ rust_static_library("rust_lib") {
   cxx_bindings = [ "lib.rs" ]
 
   deps = [
+    "librustzcash:zcash_client_backend",
     "librustzcash:zcash_primitives",
     "//brave/components/brave_wallet/rust:rust_lib",
     "//brave/third_party/rust/incrementalmerkletree/v0_5:lib",
     "//brave/third_party/rust/memuse/v0_2:lib",
     "//brave/third_party/rust/nonempty/v0_7:lib",
     "//brave/third_party/rust/orchard/v0_8:lib",
     "//brave/third_party/rust/rand/v0_8:lib",
+    "//brave/third_party/rust/shardtree/v0_3:lib",
     "//brave/third_party/rust/zcash_note_encryption/v0_4:lib",
     "//third_party/rust/byteorder/v1:lib",
   ]

components/brave_wallet/browser/zcash/rust/Cargo.toml

@@ -10,7 +10,9 @@ cxx = { version = "1" }
 orchard = { version = "0.8.0",  default-features = false }
 rand = "0.8"
 zcash_primitives  = { version = "0.15.1", default-features = false }
-zcash_note_encryption  = "0.4"
+zcash_note_encryption = "0.4"
+zcash_client_backend = { version = "0.12.1", default-features = false }
+shardtree = { version="0.3", features=["legacy-api"] }
 
 [lib]
 name = "zcash"

components/brave_wallet/browser/zcash/rust/librustzcash/BUILD.gn

@@ -23,7 +23,10 @@ rust_static_library("zcash_protocol") {
 }
 
 rust_static_library("zcash_encoding") {
-  visibility = [ ":zcash_primitives" ]
+  visibility = [
+    ":zcash_client_backend",
+    ":zcash_primitives",
+  ]
   crate_name = "zcash_encoding"
   crate_root = "src/components/zcash_encoding/src/lib.rs"
   sources = [ "src/components/zcash_encoding/src/lib.rs" ]
@@ -36,6 +39,7 @@ rust_static_library("zcash_encoding") {
 
 rust_static_library("zcash_primitives") {
   visibility = [
+    ":zcash_client_backend",
     "//brave/components/brave_wallet/browser/zcash/rust:rust_lib",
     "//brave/components/brave_wallet/browser/zcash/rust:rust_lib_cxx_generated",
   ]
@@ -58,3 +62,23 @@ rust_static_library("zcash_primitives") {
     "//third_party/rust/byteorder/v1:lib",
   ]
 }
+
+rust_static_library("zcash_client_backend") {
+  visibility = [
+    "//brave/components/brave_wallet/browser/zcash/rust:rust_lib",
+    "//brave/components/brave_wallet/browser/zcash/rust:rust_lib_cxx_generated",
+  ]
+  crate_name = "zcash_client_backend"
+  crate_root = "src/zcash_client_backend/src/lib.rs"
+  sources = [
+    "src/zcash_client_backend/src/lib.rs",
+    "src/zcash_client_backend/src/serialization.rs",
+    "src/zcash_client_backend/src/serialization/shardtree.rs",
+  ]
+  deps = [
+    ":zcash_encoding",
+    ":zcash_primitives",
+    "//brave/third_party/rust/byteorder/v1:lib",
+    "//brave/third_party/rust/shardtree/v0_3:lib",
+  ]
+}

script/brave_license_helper.py

@@ -1,7 +1,7 @@
 # Copyright (c) 2019 The Brave Authors. All rights reserved.
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this file,
-# You can obtain one at https://mozilla.org/MPL/2.0/. */
+# You can obtain one at https://mozilla.org/MPL/2.0/.
 
 import os
 import re
@@ -60,6 +60,7 @@ def AddBraveCredits(root, prune_paths, special_cases, prune_dirs,
         os.path.join('brave', 'third_party', 'rust', 'anyhow'),
         os.path.join('brave', 'third_party', 'rust', 'base64'),
         os.path.join('brave', 'third_party', 'rust', 'bitflags'),
+        os.path.join('brave', 'third_party', 'rust', 'bitflags', 'v2'),
         os.path.join('brave', 'third_party', 'rust', 'byteorder', 'v1'),
         os.path.join('brave', 'third_party', 'rust', 'cfg_if'),
         os.path.join('brave', 'third_party', 'rust', 'cxx'),

third_party/rust/chromium_crates_io/Cargo.toml

@@ -242,3 +242,8 @@ package = "zerocopy"
 [patch.crates-io.zerocopy_derive_v0_7]
 path = "../../../../third_party/rust/chromium_crates_io/vendor/zerocopy-derive-0.7.35"
 package = "zerocopy-derive"
+
+[patch.crates-io.zcash_client_backend_v0_12]
+path = "../../../components/brave_wallet/browser/zcash/rust/librustzcash/src/zcash_client_backend"
+package = "zcash_client_backend"
+

third_party/rust/chromium_crates_io/gnrt_config.toml

@@ -453,3 +453,6 @@ license_files = ['../../../../../common/licenses/Apache-2.0']
 
 [crate.zcash_protocol]
 license_files = ['../../../../../common/licenses/Apache-2.0']
+
+[crate.zcash_client_backend]
+license_files = ['../../../../../common/licenses/Apache-2.0']