Add getSelf method to management API to use without the "management" permission.

BUG=392215

Review URL: https://codereview.chromium.org/508263003

Cr-Commit-Position: refs/heads/master@{#292660}

chrome/browser/extensions/api/management/management_api.cc

@@ -326,6 +326,14 @@ bool ManagementGetFunction::RunSync() {
   return true;
 }
 
+bool ManagementGetSelfFunction::RunSync() {
+  scoped_ptr<management::ExtensionInfo> info =
+      CreateExtensionInfo(*extension_, ExtensionSystem::Get(GetProfile()));
+  results_ = management::Get::Results::Create(*info);
+
+  return true;
+}
+
 bool ManagementGetPermissionWarningsByIdFunction::RunSync() {
   scoped_ptr<management::GetPermissionWarningsById::Params> params(
       management::GetPermissionWarningsById::Params::Create(*args_));

chrome/browser/extensions/api/management/management_api.h

@@ -61,6 +61,17 @@ class ManagementGetFunction : public ManagementFunction {
   virtual bool RunSync() OVERRIDE;
 };
 
+class ManagementGetSelfFunction : public ManagementFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("management.getSelf", MANAGEMENT_GETSELF)
+
+ protected:
+  virtual ~ManagementGetSelfFunction() {}
+
+  // ExtensionFunction:
+  virtual bool RunSync() OVERRIDE;
+};
+
 class ManagementGetPermissionWarningsByIdFunction : public ManagementFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("management.getPermissionWarningsById",

chrome/browser/extensions/api/management/management_api_browsertest.cc

@@ -98,6 +98,14 @@ IN_PROC_BROWSER_TEST_F(ExtensionManagementApiBrowserTest,
   ASSERT_TRUE(listener1.WaitUntilSatisfied());
 }
 
+IN_PROC_BROWSER_TEST_F(ExtensionManagementApiBrowserTest,
+                       GetSelfNoPermissions) {
+  ExtensionTestMessageListener listener1("success", false);
+  ASSERT_TRUE(LoadExtension(
+      test_data_dir_.AppendASCII("management/get_self")));
+  ASSERT_TRUE(listener1.WaitUntilSatisfied());
+}
+
 IN_PROC_BROWSER_TEST_F(ExtensionManagementApiBrowserTest,
                        UninstallWithConfirmDialog) {
   ExtensionService* service = ExtensionSystem::Get(browser()->profile())->

chrome/common/extensions/api/_api_features.json

@@ -544,6 +544,11 @@
     "channel": "stable",
     "extension_types": ["extension", "legacy_packaged_app", "platform_app"]
   },
+  "management.getSelf": {
+    "dependencies": [],
+    "channel": "stable",
+    "extension_types": ["extension", "legacy_packaged_app", "platform_app"]
+  },
   "management.uninstallSelf": {
     "dependencies": [],
     "channel": "stable",

chrome/common/extensions/api/management.json

@@ -180,6 +180,23 @@
           }
         ]
       },
+      {
+        "name": "getSelf",
+        "description": "Returns information about the calling extension, app, or theme. Note: This function can be used without requesting the 'management' permission in the manifest.",
+        "parameters": [
+          {
+            "type": "function",
+            "name": "callback",
+            "optional": true,
+            "parameters": [
+              {
+                "name": "result",
+                "$ref": "ExtensionInfo"
+              }
+            ]
+          }
+        ]
+      },
       {
         "name": "getPermissionWarningsById",
         "description": "Returns a list of <a href='permission_warnings'>permission warnings</a> for the given extension id.",

chrome/common/extensions/docs/templates/intros/management.html

@@ -15,6 +15,7 @@ For example:</p>
 }</pre>
 
 <p>
-$(ref:management.getPermissionWarningsByManifest) and
-$(ref:management.uninstallSelf) do not require the management permission
+$(ref:management.getPermissionWarningsByManifest),
+$(ref:management.uninstallSelf), and $(ref:management.getSelf) do not require
+the management permission.
 </p>

chrome/test/data/extensions/management/get_self/background.js

+//  Copyright 2014 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.
+
+chrome.management.getSelf(function(info) {
+  chrome.test.assertTrue(info != null);
+  chrome.test.assertEq("Self Get Test (no permissions)", info.name);
+  chrome.test.assertEq("extension", info.type);
+  chrome.test.assertEq(true, info.enabled);
+  chrome.test.sendMessage("success");
+});

chrome/test/data/extensions/management/get_self/manifest.json

+{
+  "name": "Self Get Test (no permissions)",
+  "version": "1",
+  "manifest_version": 2,
+  "background": {
+    "scripts": ["background.js"]
+  }
+}

extensions/browser/extension_function_histogram_value.h

@@ -947,6 +947,7 @@ enum HistogramValue {
   MEDIAGALLERIES_REMOVEGALLERYWATCH,
   MEDIAGALLERIES_GETALLGALLERYWATCH,
   MEDIAGALLERIES_REMOVEALLGALLERYWATCH,
+  MANAGEMENT_GETSELF,
   // Last entry: Add new entries above and ensure to update
   // tools/metrics/histograms/histograms.xml.
   ENUM_BOUNDARY

tools/metrics/histograms/histograms.xml

@@ -41133,6 +41133,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <int value="886" label="MEDIAGALLERIES_REMOVEGALLERYWATCH"/>
   <int value="887" label="MEDIAGALLERIES_GETALLGALLERYWATCH"/>
   <int value="888" label="MEDIAGALLERIES_REMOVEALLGALLERYWATCH"/>
+  <int value="889" label="MANAGEMENT_GETSELF"/>
 </enum>
 
 <enum name="ExtensionInstallCause" type="int">