Revert of Add a has_media flag to VolumeMetadata.

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 367bcbfdd41984d1c38c05741dcd3d1641a2e6aa..9b317218384370efc2f8a93007d64b8dfd1e8f20 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 +12,6 @@
   devicePath: 'system_path_prefix1',
   isParentDevice: false,
   isReadOnly: false,
-  hasMedia: false,
   profile: {profileId: "", displayName: "", isCurrentProfile: true}
 };
 
@@ -25,7 +24,6 @@
   devicePath: 'system_path_prefix2',
   isParentDevice: true,
   isReadOnly: true,
-  hasMedia: true,
   profile: {profileId: "", displayName: "", isCurrentProfile: true}
 };
 
@@ -38,7 +36,6 @@
   devicePath: 'system_path_prefix3',
   isParentDevice: true,
   isReadOnly: false,
-  hasMedia: false,
   profile: {profileId: "", displayName: "", isCurrentProfile: true}
 };
 
@@ -47,7 +44,6 @@
   volumeLabel: '',
   volumeType: 'downloads',
   isReadOnly: false,
-  hasMedia: true,
   profile: {profileId: "", displayName: "", isCurrentProfile: true}
 };
 
@@ -57,7 +53,6 @@
   sourcePath: /^\/special\/drive[^\/]*$/,
   volumeType: 'drive',
   isReadOnly: false,
-  hasMedia: true,
   profile: {profileId: "", displayName: "", isCurrentProfile: true}
 };
 
@@ -67,7 +62,6 @@
   sourcePath: /removable\/mount_path3\/archive.zip$/,
   volumeType: 'archive',
   isReadOnly: true,
-  hasMedia: false,
   profile: {profileId: "", displayName: "", isCurrentProfile: true}
 };