Adding ChromeVox as a component extensions (enabled only for ChromeOS, for now)

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6254007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72238 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/browser_resources.grd

@@ -100,6 +100,8 @@ without changes to the corresponding grd file. etaa -->
         <include name="IDR_NETWORK_MENU_JS" file="resources\network_menu.js" flattenhtml="true" type="BINDATA" />
         <include name="IDR_WRENCH_MENU_JS" file="resources\wrench_menu.js" flattenhtml="true" type="BINDATA" />
         <include name="IDR_WRENCH_MENU_CSS" file="resources\wrench_menu.css" flattenhtml="true" type="BINDATA" />
+        <!-- manifest file of ChromeVox accessibility extension -->
+        <include name="IDR_CHROMEVOX_MANIFEST" file="resources\access_chromevox\manifest.json" type="BINDATA" />
       </if>
     </includes>
   </release>

chrome/browser/profiles/profile_impl.cc

@@ -402,6 +402,20 @@ void ProfileImpl::RegisterComponentExtensions() {
     extensions_service_->register_component_extension(
         ExtensionService::ComponentExtensionInfo(manifest, path));
   }
+
+#if defined(OS_CHROMEOS)
+  // Register access extensions only if accessibility is enabled.
+  if (g_browser_process->local_state()->
+      GetBoolean(prefs::kAccessibilityEnabled)) {
+    FilePath path = FilePath(extension_misc::kAccessExtensionPath)
+        .AppendASCII("access_chromevox");
+    std::string manifest =
+        ResourceBundle::GetSharedInstance().GetRawDataResource(
+            IDR_CHROMEVOX_MANIFEST).as_string();
+    extensions_service_->register_component_extension(
+        ExtensionService::ComponentExtensionInfo(manifest, path));
+  }
+#endif
 }
 
 void ProfileImpl::InstallDefaultApps() {

chrome/browser/resources/access_chromevox/manifest.json

+{
+  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDltVl1k15pjRzuZfMc3B69inxwm2bZeZ2O8/zFO+NluHnBm3GJ3fzdOoFGJd+M16I8p7zxxQyHeDMfWYASyCeB8XnUEDKjqNLQfCnncsANzHsYoEbYj2nEUML2P13b9q+AAvpCBpAJ4cZp81e9n1y/vbSXHE4385cgkKueItzikQIDAQAB",
+  "name": "ChromeVox",
+  "version": "1.0",
+  "description": "ChromeVox - Giving Voice to Chrome.",
+  "background_page": "chromevox/background/background.html",
+  "permissions": [
+    "bookmarks",
+    "tabs",
+    "experimental",
+    "http://*/",
+    "https://*/"
+  ],
+  "content_scripts": [
+    {
+      "matches": [ "<all_urls>" ],
+      "all_frames": true,
+      "js": [
+        "build/build_defs.js",
+        "build/build_config_chrome.js",
+        "chromevox/injected/main.js",
+        "common/extension_bridge.js"
+      ]
+    }
+  ]
+}

chrome/common/extensions/extension_constants.cc

@@ -332,4 +332,8 @@ namespace extension_misc {
 const char* kBookmarkManagerId = "eemcgdkfndhakfknompkggombfjjjeno";
 const char* kWebStoreAppId = "ahfgeienlihckogmohjhadlkjgocpleb";
 const char* kAppsPromoHistogram = "Extensions.AppsPromo";
+#if defined(OS_CHROMEOS)
+const char* kAccessExtensionPath =
+    "/usr/share/chromeos-assets/accessibility/extensions";
+#endif
 }

chrome/common/extensions/extension_constants.h

@@ -268,6 +268,12 @@ namespace extension_misc {
     PROMO_SEEN,
     PROMO_BUCKET_BOUNDARY
   };
+
+#if defined(OS_CHROMEOS)
+  // The directory path on a ChromeOS device where accessibility extensions are
+  // stored.
+  extern const char* kAccessExtensionPath;
+#endif
 }  // extension_misc
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_