ci: Set symbol_level in libwebrtc gn command

[karasusan]

This pull request updates the build scripts for all supported platforms (Android, iOS, Linux, macOS, and Windows) to set the symbol_level build argument dynamically based on whether a debug or release build is being performed. The main effect is that debug builds now include more debug symbols (symbol_level=1), while release builds include fewer (symbol_level=0). This change helps balance debuggability in debug builds with smaller binary sizes in release builds.

Key changes by theme:

Dynamic Symbol Level Configuration:

• All platform build scripts (build_libwebrtc_android.sh, build_libwebrtc_ios.sh, build_libwebrtc_linux.sh, build_libwebrtc_macos.sh, build_libwebrtc_win.cmd) now set the symbol_level argument to 1 for debug builds and 0 for release builds, instead of hardcoding the value. [1] [2] [3] [4] [5] [6]

Build Argument Updates:

• The symbol_level variable is now passed to the gn gen or equivalent build generation commands in all scripts, ensuring consistent symbol level configuration across platforms. [1] [2] [3] [4] [5] [6]

These changes improve the maintainability and consistency of our build process across all platforms.

[Copilot]

Pull Request Overview

This PR updates all platform build scripts to dynamically set the symbol_level build argument based on debug vs release builds, improving the balance between debuggability and binary size across platforms.

• Sets symbol_level=1 for debug builds and symbol_level=0 for release builds
• Applies changes consistently across Android, iOS, Linux, macOS, and Windows build scripts
• Replaces hardcoded symbol_level=0 values with dynamic configuration

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
BuildScripts~/build_libwebrtc_android.sh	Adds dynamic symbol_level configuration for both native library and AAR builds
BuildScripts~/build_libwebrtc_ios.sh	Implements conditional symbol_level setting for iOS builds
BuildScripts~/build_libwebrtc_linux.sh	Adds symbol_level logic to Linux build configuration
BuildScripts~/build_libwebrtc_macos.sh	Updates macOS build script with dynamic symbol_level
BuildScripts~/build_libwebrtc_win.cmd	Modifies Windows batch script to conditionally set symbol_level

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