Storage manager: Add conditional messages for disk low situation and update design.

chrome/app/chromeos_strings.grdp

Index: chrome/app/chromeos_strings.grdp
diff --git a/chrome/app/chromeos_strings.grdp b/chrome/app/chromeos_strings.grdp
index faa2d14600c3ba3a63d35cbdb47c992ff1cf4ae8..0bf3141b33218c2daf562af9161ba91a6da6d1d9 100644
--- a/chrome/app/chromeos_strings.grdp
+++ b/chrome/app/chromeos_strings.grdp
@@ -2066,7 +2066,7 @@ Press any key to continue exploring.
     Keyboard settings
   </message>
   <message name="IDS_OPTIONS_DEVICE_GROUP_STORAGE_MANAGER_BUTTON_TITLE">
-    Storage
+    Storage management
   </message>
   <message name="IDS_OPTIONS_DEVICE_GROUP_POINTER_SECTION">
     Pointer speed:
@@ -2543,7 +2543,25 @@ Press any key to continue exploring.
     Disable mobile data roaming
   </message>
   <message name="IDS_OPTIONS_SETTINGS_STORAGE_MANAGER_TAB_TITLE" desc="Title for the storage manager tab.">
-    Storage
+    Storage management
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_SPACE_LOW_MESSAGE_TITLE" desc="Title of a warning message indicating device's available disk space is low.">
+    Device is low on space
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_SPACE_LOW_MESSAGE_LINE_1" desc="The first paragraph of a warning message indicating device's available disk space is low.">
+    To free up space, delete files from device storage.
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_SPACE_LOW_MESSAGE_LINE_2" desc="The second paragraph of a warning message indicating device's available disk space is low.">
+    If space isn't made available, users and data may be automatically deleted.
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_SPACE_CRITICALLY_LOW_MESSAGE_TITLE" desc="Title of a warning message indicating device's available disk space is critically low.">
+    Device space criticaly low
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_SPACE_CRITICALLY_LOW_MESSAGE_LINE_1" desc="The first paragraph of a warning message indicating device's available disk space is critically low.">
+    Free up at least 512 MB of space or your device will become unresponsible. To free up space, delete files from device storage.
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_SPACE_CRITICALLY_LOW_MESSAGE_LINE_2" desc="The second paragraph of a warning message indicating device's available disk space is critically low.">
+    Users and data may be automatically removed until at least 512 MB of space is available.
   </message>
   <message name="IDS_OPTIONS_SETTINGS_STORAGE_SIZE_CALCULATING" desc="In storage manager overlay, label for storage item's size indicating the size is being calculated.">
     Calculating...
@@ -2564,7 +2582,7 @@ Press any key to continue exploring.
     Downloads
   </message>
   <message name="IDS_OPTIONS_SETTINGS_STORAGE_SUBITEM_LABEL_ARC" desc="In storage manager overlay, label for the total size size of Android apps and cache.">
-    Android apps and cache
+    Android storage
   </message>
   <message name="IDS_OPTIONS_ACCOUNTS_ALLOW_BWSI_DESCRIPTION" desc="In the Accounts settings tab, the text on the checkbox to allow browse without signing in.">
     Enable Guest browsing