enterprise.platformKeys: Copy-on-read the 'algorithm' member of Key objects.

chrome/renderer/extensions/utils_unittest.cc

Index: chrome/renderer/extensions/utils_unittest.cc
diff --git a/chrome/renderer/extensions/utils_unittest.cc b/chrome/renderer/extensions/utils_unittest.cc
index 3a718ddccd14a4477469f25e7566a2054f5a8f7c..7145d431aaa6d1ac31a6b5d9fb3d966b9bd98836 100644
--- a/chrome/renderer/extensions/utils_unittest.cc
+++ b/chrome/renderer/extensions/utils_unittest.cc
@@ -119,5 +119,44 @@ TEST_F(UtilsUnittest, SuperClass) {
   context_->module_system()->Require("test");
 }
 
+TEST_F(UtilsUnittest, DeepCopy) {
+  ModuleSystem::NativesEnabledScope natives_enabled_scope(
+      context_->module_system());
+  RegisterTestModule(
+      "var nested = {\n"
+      "  string: 'abc',\n"
+      "  _null: null\n"
+      "};\n"
+      "var top = {\n"
+      "  array: [1, 'abc', nested],\n"
+      "  uint8array: new Uint8Array([1,2,3])\n"
+      "};\n"
+      "\n"
+      "var copy = utils.deepCopy(top);\n"
+      "// Ensure that the copy is not referencing to the original.\n"
+      "AssertTrue(copy !== top);\n"
+      "AssertTrue(copy.array !== top.array);\n"
+      "AssertTrue(copy.array[2] !== top.array[2]);\n"
+      "AssertTrue(copy.uint8array !== top.uint8array);\n"
+      "AssertTrue(copy.uint8array.buffer !== top.uint8array.buffer);\n"
+      "\n"
+      "// Check |copy|.\n"
+      "AssertTrue(Object.keys(copy) == 'array,uint8array');\n"
+      "\n"
+      "// Check |copy.array|.\n"
+      "AssertTrue(Array.isArray(copy.array));\n"
+      "AssertTrue(copy.array.length === 3);\n"
+      "AssertTrue(copy.array[0] === 1);\n"
+      "AssertTrue(copy.array[1] === 'abc');\n"
+      "\n"
+      "// Check |copy.array[2]|.\n"
+      "var copyNested = copy.array[2];\n"
+      "AssertTrue(Object.keys(copyNested) == 'string,_null');\n"
+      "AssertTrue(copyNested.string === 'abc');\n"
+      "AssertTrue(copyNested._null === null);\n");
+
+  context_->module_system()->Require("test");
+}
+
 }  // namespace
 }  // namespace extensions