Add bundle_deps_filter to create_bundle targets.

tools/gn/variables.cc

 // 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.
 
 #include "tools/gn/variables.h"
 
 namespace variables {
 
 // Built-in variables ----------------------------------------------------------
 
@@ skipping 590 matching lines @@
         "Expansion of {{bundle_resources_dir}} in create_bundle.\n"
     "\n"
     "  A string corresponding to a path in $root_build_dir.\n"
     "\n"
     "  This string is used by the \"create_bundle\" target to expand the\n"
     "  {{bundle_resources_dir}} of the \"bundle_data\" target it depends on.\n"
     "  This must correspond to a path under \"bundle_root_dir\".\n"
     "\n"
     "  See \"gn help bundle_root_dir\" for examples.\n";
 
+const char kBundleDepsFilter[] = "bundle_deps_filter";
+const char kBundleDepsFilter_HelpShort[] =
+    "bundle_deps_filter: [label list] A list of labels that are filtered out.";
+const char kBundleDepsFilter_Help[] =
+    "bundle_deps_filter: [label list] A list of labels that are filtered out.\n"
+    "\n"
+    "  A list of target labels.\n"
+    "\n"
+    "  This list contains target label patterns that should be filtered out\n"
+    "  when creating the bundle. Any target matching one of those label will\n"
+    "  be removed from the dependencies of the create_bundle target.\n"
+    "\n"
+    "  This is mostly useful when creating application extension bundle as\n"
+    "  the application extension has access to runtime resources from the\n"
+    "  application bundle and thus do not require a second copy.\n"
+    "\n"
+    "  See \"gn help create_bundle\" for more information.\n"
+    "\n"
+    "Example\n"
+    "\n"
+    "  create_bundle(\"today_extension\") {\n"
+    "    deps = [\n"
+    "      \"//base\"\n"
+    "    ]\n"
+    "    bundle_root_dir = \"$root_out_dir/today_extension.appex\"\n"
+    "    bundle_deps_filter = [\n"
+    "      # The extension uses //base but does not use any function calling\n"
+    "      # into third_party/icu and thus does not need the icudtl.dat file.\n"
+    "      \"//third_party/icu:icudata\",\n"
+    "    ]\n"
+    "  }\n";
+
 const char kBundleExecutableDir[] = "bundle_executable_dir";
 const char kBundleExecutableDir_HelpShort[] =
     "bundle_executable_dir: "
         "Expansion of {{bundle_executable_dir}} in create_bundle";
 const char kBundleExecutableDir_Help[] =
     "bundle_executable_dir: "
         "Expansion of {{bundle_executable_dir}} in create_bundle.\n"
     "\n"
     "  A string corresponding to a path in $root_build_dir.\n"
     "\n"
@@ skipping 1183 matching lines @@
   static VariableInfoMap info_map;
   if (info_map.empty()) {
     INSERT_VARIABLE(AllDependentConfigs)
     INSERT_VARIABLE(AllowCircularIncludesFrom)
     INSERT_VARIABLE(Arflags)
     INSERT_VARIABLE(Args)
     INSERT_VARIABLE(Asmflags)
     INSERT_VARIABLE(AssertNoDeps)
     INSERT_VARIABLE(BundleRootDir)
     INSERT_VARIABLE(BundleResourcesDir)
+    INSERT_VARIABLE(BundleDepsFilter)
     INSERT_VARIABLE(BundleExecutableDir)
     INSERT_VARIABLE(BundlePlugInsDir)
     INSERT_VARIABLE(Cflags)
     INSERT_VARIABLE(CflagsC)
     INSERT_VARIABLE(CflagsCC)
     INSERT_VARIABLE(CflagsObjC)
     INSERT_VARIABLE(CflagsObjCC)
     INSERT_VARIABLE(CheckIncludes)
     INSERT_VARIABLE(CodeSigningArgs)
     INSERT_VARIABLE(CodeSigningScript)
@@ skipping 29 matching lines @@
     INSERT_VARIABLE(Testonly)
     INSERT_VARIABLE(Visibility)
     INSERT_VARIABLE(WriteRuntimeDeps)
   }
   return info_map;
 }
 
 #undef INSERT_VARIABLE
 
 }  // namespace variables