• Changes only inside brave-core
• Changes inside Chromium
• Introduction to chromium_src overrides
• Subclass and override
• Using the preprocessor to use base implementations inside override files
• Making methods virtual
• Override a .cc file completely
• Patch the Chromium files
• Patching gn/gni files
• Patching mojom files
• Patching Android java files
• Patching Android xml files
• Patching py files
• Patching ts files
• Accessing private methods