nodejs-electron/brotli-remove-shared-dictionary.patch

Partially revert https://github.com/chromium/chromium/commit/c1dc375391403442935f1305f5a9782dd1c33f3a
and disable dependent code. This removes `brs` from Accept-Encoding list.
This feature does not build with brotli < 1.1

--- src/net/filter/brotli_source_stream.cc.orig	2025-08-21 17:44:48.616409315 +0200
+++ src/net/filter/brotli_source_stream.cc	2025-08-22 18:23:03.535047458 +0200
@@ -18,7 +18,6 @@
 #include "net/base/io_buffer.h"
 #include "net/filter/source_stream_type.h"
 #include "third_party/brotli/include/brotli/decode.h"
-#include "third_party/brotli/include/brotli/shared_dictionary.h"
 
 namespace net {
 
@@ -30,21 +29,11 @@ const char kBrotli[] = "BROTLI";
 // Brotli format specification: http://www.ietf.org/id/draft-alakuijala-brotli.
 class BrotliSourceStream : public FilterSourceStream {
  public:
-  explicit BrotliSourceStream(std::unique_ptr<SourceStream> upstream,
-                              scoped_refptr<IOBuffer> dictionary = nullptr,
-                              size_t dictionary_size = 0u)
-      : FilterSourceStream(SourceStreamType::kBrotli, std::move(upstream)),
-        dictionary_(std::move(dictionary)),
-        dictionary_size_(dictionary_size) {
+  explicit BrotliSourceStream(std::unique_ptr<SourceStream> upstream)
+      : FilterSourceStream(SourceStreamType::kBrotli, std::move(upstream)) {
     brotli_state_ =
         BrotliDecoderCreateInstance(AllocateMemory, FreeMemory, this);
     CHECK(brotli_state_);
-    if (dictionary_) {
-      BROTLI_BOOL result = BrotliDecoderAttachDictionary(
-          brotli_state_, BROTLI_SHARED_DICTIONARY_RAW, dictionary_size_,
-          reinterpret_cast<const unsigned char*>(dictionary_->data()));
-      CHECK(result);
-    }
   }
 
   BrotliSourceStream(const BrotliSourceStream&) = delete;
@@ -180,9 +169,6 @@ class BrotliSourceStream : public Filter
     free(&array[-1]);
   }
 
-  const scoped_refptr<IOBuffer> dictionary_;
-  const size_t dictionary_size_;
-
   raw_ptr<BrotliDecoderState> brotli_state_;
 
   DecodingStatus decoding_status_ = DecodingStatus::DECODING_IN_PROGRESS;
@@ -204,8 +190,7 @@ std::unique_ptr<FilterSourceStream> Crea
     std::unique_ptr<SourceStream> previous,
     scoped_refptr<IOBuffer> dictionary,
     size_t dictionary_size) {
-  return std::make_unique<BrotliSourceStream>(
-      std::move(previous), std::move(dictionary), dictionary_size);
+  return nullptr;
 }
 
 }  // namespace net
--- src/services/network/public/cpp/features.cc.old	2024-02-26 14:40:47.616464200 +0000
+++ src/services/network/public/cpp/features.cc	2024-02-26 18:32:53.080944900 +0000
@@ -383,7 +383,7 @@ BASE_FEATURE(kPrefetchNoVarySearch,
 //     decompresses the response body using the dictionary.
 BASE_FEATURE(kCompressionDictionaryTransportBackend,
              "CompressionDictionaryTransportBackend",
-             base::FEATURE_ENABLED_BY_DEFAULT);
+             base::FEATURE_DISABLED_BY_DEFAULT);
 
 // When both this feature and the kCompressionDictionaryTransportBackend feature
 // are enabled, the following will happen: