Propagate the read_only_hardware flag of volumes to js.

chrome/test/data/extensions/api_test/file_browser/mount_test/test.js

Index: chrome/test/data/extensions/api_test/file_browser/mount_test/test.js
diff --git a/chrome/test/data/extensions/api_test/file_browser/mount_test/test.js b/chrome/test/data/extensions/api_test/file_browser/mount_test/test.js
index 3f73a9fae66505aeb9a5616c29d7490ddce8e6db..631cf5f0307ebe077a992b0cf87a2945e32354cb 100644
--- a/chrome/test/data/extensions/api_test/file_browser/mount_test/test.js
+++ b/chrome/test/data/extensions/api_test/file_browser/mount_test/test.js
@@ -12,6 +12,7 @@ var expectedVolume1 = {
   devicePath: 'system_path_prefix1',
   isParentDevice: false,
   isReadOnly: false,
+  isReadOnlyRemovableDevice: false,
   hasMedia: false,
   configurable: false,
   watchable: true,
@@ -28,6 +29,7 @@ var expectedVolume2 = {
   devicePath: 'system_path_prefix2',
   isParentDevice: true,
   isReadOnly: true,
+  isReadOnlyRemovableDevice: true,
   hasMedia: true,
   configurable: false,
   // This is not an MTP device, so it's watchable.
@@ -45,7 +47,8 @@ var expectedVolume3 = {
   deviceType: 'optical',
   devicePath: 'system_path_prefix3',
   isParentDevice: true,
-  isReadOnly: false,
+  isReadOnly: true,
+  isReadOnlyRemovableDevice: false,
   hasMedia: false,
   configurable: false,
   watchable: true,
@@ -58,6 +61,7 @@ var expectedDownloadsVolume = {
   volumeLabel: '',
   volumeType: 'downloads',
   isReadOnly: false,
+  isReadOnlyRemovableDevice: false,
   hasMedia: false,
   configurable: false,
   watchable: true,
@@ -71,6 +75,7 @@ var expectedDriveVolume = {
   sourcePath: /^\/special\/drive[^\/]*$/,
   volumeType: 'drive',
   isReadOnly: false,
+  isReadOnlyRemovableDevice: false,
   hasMedia: false,
   configurable: false,
   watchable: true,
@@ -84,6 +89,7 @@ var expectedArchiveVolume = {
   sourcePath: /removable\/mount_path3\/archive.zip$/,
   volumeType: 'archive',
   isReadOnly: true,
+  isReadOnlyRemovableDevice: false,
   hasMedia: false,
   configurable: false,
   watchable: true,
@@ -96,6 +102,7 @@ var expectedProvidedVolume = {
   volumeLabel: '',
   volumeType: 'provided',
   isReadOnly: true,
+  isReadOnlyRemovableDevice: false,
   hasMedia: false,
   configurable: true,
   watchable: false,