libANGLE-shared.dylib, libwebrtc.dylib & WebGPU install names are prefixed with the system content path
https://bugs.webkit.org/show_bug.cgi?id=238058

Reviewed by Mark Lam.

Source/ThirdParty/ANGLE:

We need to create a default value for DYLIB_INSTALL_NAME_BASE for iOS builds.
We want to allow executables to use the framework via the symlink from the old location.

* Configurations/ANGLE-dynamic.xcconfig:

Source/ThirdParty/libwebrtc:

We need to create a default value for DYLIB_INSTALL_NAME_BASE for iOS builds.
We want to allow executables to use the framework via the symlink from the old location.

* Configurations/libwebrtc.xcconfig:

Source/WebGPU:

We need to set  DYLIB_INSTALL_NAME_BASE for WK_USE_ALTERNATE_FRAMEWORKS_DIR installs without the
system content path prefix.
We want to allow executables to use the framework via the symlink from the old location.

* Configurations/WebGPU.xcconfig:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@291455 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/ThirdParty/ANGLE/Configurations/ANGLE-dynamic.xcconfig b/Source/ThirdParty/ANGLE/Configurations/ANGLE-dynamic.xcconfig
index 3a32f8b..bd3c751 100644
--- a/Source/ThirdParty/ANGLE/Configurations/ANGLE-dynamic.xcconfig
+++ b/Source/ThirdParty/ANGLE/Configurations/ANGLE-dynamic.xcconfig
@@ -30,6 +30,7 @@
 INSTALL_PATH_USE_OVERRIDE_FRAMEWORKS_DIR_YES = $(WK_OVERRIDE_FRAMEWORKS_DIR);
 INSTALL_PATH_USE_ALTERNATE_FRAMEWORKS_DIR_YES = $(INSTALL_PATH_PREFIX)$(WK_ALTERNATE_FRAMEWORKS_DIR)/$(SYSTEM_LIBRARY_DIR)/PrivateFrameworks/WebCore.framework/Versions/A/Frameworks;
 
+DYLIB_INSTALL_NAME_BASE = $(NORMAL_WEBCORE_FRAMEWORKS_DIR)/WebCore.framework/Frameworks;
 DYLIB_INSTALL_NAME_BASE[sdk=macosx*] = $(DYLIB_INSTALL_NAME_BASE_USE_ALTERNATE_FRAMEWORKS_DIR_$(WK_USE_ALTERNATE_FRAMEWORKS_DIR));
 DYLIB_INSTALL_NAME_BASE_USE_ALTERNATE_FRAMEWORKS_DIR_NO = $(DYLIB_INSTALL_NAME_BASE_WK_RELOCATABLE_FRAMEWORKS_$(WK_RELOCATABLE_FRAMEWORKS));
 DYLIB_INSTALL_NAME_BASE_USE_ALTERNATE_FRAMEWORKS_DIR_YES = $(WK_ALTERNATE_FRAMEWORKS_DIR)/$(SYSTEM_LIBRARY_DIR)/PrivateFrameworks/WebCore.framework/Versions/A/Frameworks;