From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Henri Torgemane <henrit@gmail.com>
Date: Thu, 23 Sep 2021 21:30:33 -0500
Subject: add ui::ScopedCliboardWriter::WriteUnsafeRawData

This restores some ability to write to the clipboard using raw formats, which
was removed as part of the Raw Clipboard API scrubbing.
https://bugs.chromium.org/p/chromium/issues/detail?id=1217643

diff --git a/ui/base/clipboard/scoped_clipboard_writer.cc b/ui/base/clipboard/scoped_clipboard_writer.cc
index 48f0b7a7812a073c31ac1d7af156470efbb1b051..296ee0b51e3bdd68ceb63df4fbe5813a91669b7c 100644
--- a/ui/base/clipboard/scoped_clipboard_writer.cc
+++ b/ui/base/clipboard/scoped_clipboard_writer.cc
@@ -227,6 +227,16 @@ void ScopedClipboardWriter::WriteData(const std::u16string& format,
   }
 }
 
+void ScopedClipboardWriter::WriteUnsafeRawData(const std::u16string& format,
+                                               mojo_base::BigBuffer data) {
+  static constexpr int kMaxRegisteredFormats = 100;
+  if (counter_ >= kMaxRegisteredFormats)
+    return;
+  counter_++;
+  platform_representations_.push_back(
+      {base::UTF16ToUTF8(format), std::move(data)});
+}
+
 void ScopedClipboardWriter::Reset() {
   objects_.clear();
   raw_objects_.clear();
diff --git a/ui/base/clipboard/scoped_clipboard_writer.h b/ui/base/clipboard/scoped_clipboard_writer.h
index e63c08b06c00dc0b1bd9c8339d3c6375e952e4f7..9e35ab7e6512c749fdea75fa863a97318541d350 100644
--- a/ui/base/clipboard/scoped_clipboard_writer.h
+++ b/ui/base/clipboard/scoped_clipboard_writer.h
@@ -88,6 +88,10 @@ class COMPONENT_EXPORT(UI_BASE_CLIPBOARD) ScopedClipboardWriter {
   // This is only used to write custom format data.
   void WriteData(const std::u16string& format, mojo_base::BigBuffer data);
 
+  // write raw (non-pickled) data to the clipboard
+  void WriteUnsafeRawData(const std::u16string& format,
+                          mojo_base::BigBuffer data);
+
   void WriteImage(const SkBitmap& bitmap);
 
   // Mark the data to be written as confidential.