Add support for Mac/iOS application bundles to GN tool.

tools/gn/variables.cc

Index: tools/gn/variables.cc
diff --git a/tools/gn/variables.cc b/tools/gn/variables.cc
index c88a182fb6359f1a4d10cb77116738662c1e1411..19f086e95114ed4ba164690a1517cc04e6065018 100644
--- a/tools/gn/variables.cc
+++ b/tools/gn/variables.cc
@@ -434,6 +434,28 @@ const char kAssertNoDeps_Help[] =
     "    ]\n"
     "  }\n";
 
+const char kBundleData[] = "bundle_data";
+const char kBundleData_HelpShort[] =
+    "bundle_data: [file list] Runtime data dependency (Mac/iOS).";
+const char kBundleData_Help[] =
+    "bundle_data: Runtime data dependency (Mac/iOS).\n"
+    "\n"
+    "  List files that are required at runtime by the current target and\n"
+    "  should be copied into the application bundle.\n"
+    "\n"
+    "  See also \"gn help copy_bundle_data\".\n";
+
+const char kBundleDataFilter[] = "bundle_data_filter";
+const char kBundleDataFilter_HelpShort[] =
+    "bundle_data_filter: [pattern list] Exclusions for copy_bundle_data.";
+const char kBundleDataFilter_Help[] =
+    "bundle_data_filter: Exclusions for copy_bundle_data.\n"
+    "\n"
+    "  List of file patterns that need to be excluded from the application\n"
+    "  bundle. All files matching this pattern will be excluded.\n"
+    "\n"
+    "  See also \"gn help copy_bundle_data\".\n";
+
 const char kCflags[] = "cflags";
 const char kCflags_HelpShort[] =
     "cflags: [string list] Flags passed to all C compiler variants.";
@@ -1444,6 +1466,8 @@ const VariableInfoMap& GetTargetVariables() {
     INSERT_VARIABLE(Args)
     INSERT_VARIABLE(Asmflags)
     INSERT_VARIABLE(AssertNoDeps)
+    INSERT_VARIABLE(BundleData)
+    INSERT_VARIABLE(BundleDataFilter)
     INSERT_VARIABLE(Cflags)
     INSERT_VARIABLE(CflagsC)
     INSERT_VARIABLE(CflagsCC)