Always load signin profile on Chrome OS startup.

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 0416e791a01860944cee98aa631a9f2ffd234cef..410dda4ab8a8b0e69ee4e3c9972d2b6079db9b66 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
@@ -12,7 +12,7 @@ var expectedVolume1 = {
   deviceLabel: 'drive_label1',
   isParentDevice: false,
   isReadOnly: false,
-  profile: {profileId: "", displayName: "", isCurrentProfile: true}
+  profile: {profileId: "", displayName: /.*/, isCurrentProfile: true}
 };
 
 var expectedVolume2 = {
@@ -24,7 +24,7 @@ var expectedVolume2 = {
   deviceLabel: 'drive_label2',
   isParentDevice: true,
   isReadOnly: true,
-  profile: {profileId: "", displayName: "", isCurrentProfile: true}
+  profile: {profileId: "", displayName: /.*/, isCurrentProfile: true}
 };
 
 var expectedVolume3 = {
@@ -36,14 +36,14 @@ var expectedVolume3 = {
   deviceLabel: 'drive_label3',
   isParentDevice: true,
   isReadOnly: false,
-  profile: {profileId: "", displayName: "", isCurrentProfile: true}
+  profile: {profileId: "", displayName: /.*/, isCurrentProfile: true}
 };
 
 var expectedDownloadsVolume = {
   volumeId: /^downloads:Downloads[^\/]*$/,
   volumeType: 'downloads',
   isReadOnly: false,
-  profile: {profileId: "", displayName: "", isCurrentProfile: true}
+  profile: {profileId: "", displayName: /.*/, isCurrentProfile: true}
 };
 
 var expectedDriveVolume = {
@@ -51,7 +51,7 @@ var expectedDriveVolume = {
   sourcePath: /^\/special\/drive[^\/]*$/,
   volumeType: 'drive',
   isReadOnly: false,
-  profile: {profileId: "", displayName: "", isCurrentProfile: true}
+  profile: {profileId: "", displayName: /.*/, isCurrentProfile: true}
 };
 
 var expectedArchiveVolume = {
@@ -59,7 +59,7 @@ var expectedArchiveVolume = {
   sourcePath: /removable\/mount_path3\/archive.zip$/,
   volumeType: 'archive',
   isReadOnly: true,
-  profile: {profileId: "", displayName: "", isCurrentProfile: true}
+  profile: {profileId: "", displayName: /.*/, isCurrentProfile: true}
 };
 
 // List of expected mount points.