GN Don't enable linker version script for components

build/config/BUILDCONFIG.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # =============================================================================
 # PLATFORM SELECTION
 # =============================================================================
 #
 # There are two main things to set: "os" and "cpu". The "toolchain" is the name
 # of the GN thing that encodes combinations of these things.
@@ skipping 531 matching lines @@
 }
 set_defaults("shared_library") {
   configs = _shared_library_configs
 }
 set_defaults("loadable_module") {
   configs = _shared_library_configs
 }
 if (is_component_build) {
   set_defaults("component") {
     configs = _shared_library_configs
+    if (is_android) {
+      configs -= [ "//build/config/android:hide_native_jni_exports" ]
+    }
   }
 }
 
 # Source set defaults (also for components in non-component mode).
 set_defaults("source_set") {
   configs = _native_compiler_configs
 }
 if (!is_component_build) {
   set_defaults("component") {
     configs = _native_compiler_configs
   }
 }
 
 # Test defaults.
 set_defaults("test") {
   if (is_android) {
     configs = _shared_library_configs
   } else {
     configs = _executable_configs
   }
 }
 
 # ==============================================================================
 # COMPONENT SETUP
 # ==============================================================================
 
-if (is_component_build) {
-  _component_mode = "shared_library"
-} else {
-  _component_mode = "source_set"
-}
+# Defines a component, which equates to a shared_library when
+# is_component_build == true and a source_set / static_library otherwise.
+#
+# Arguments are the same as a normal library with this addition:
+#   component_never_use_source_set: Whether to use static_library instead of
+#       source_set for non-component builds. Some targets (e.g. //base) should
+#       use static_library rather than source_set to avoid linking unused object
+#       files.
 template("component") {
+  _never_use_source_set = defined(invoker.component_never_use_source_set) &&
+                          invoker.component_never_use_source_set
+  assert(_never_use_source_set || true)  # Mark as used.
+  if (is_component_build) {
+    _component_mode = "shared_library"
+  } else if (_never_use_source_set) {
+    _component_mode = "static_library"
+  } else {
+    _component_mode = "source_set"
+  }
   target(_component_mode, target_name) {
     forward_variables_from(invoker, "*")
 
     # All shared libraries must have the sanitizer deps to properly link in
     # asan mode (this target will be empty in other cases).
     if (!defined(deps)) {
       deps = []
     }
     deps += [ "//build/config/sanitizers:deps" ]
   }
 }