cros: Added a new function to quick unlock api for checking unfinished pins.

chrome/common/extensions/api/quick_unlock_private.idl

Index: chrome/common/extensions/api/quick_unlock_private.idl
diff --git a/chrome/common/extensions/api/quick_unlock_private.idl b/chrome/common/extensions/api/quick_unlock_private.idl
index c3121beffcaf4e61c5d7148737a66a8e72b6f317..2f4a3af3d46153fe34eb9ca545815fe1b1d972ab 100644
--- a/chrome/common/extensions/api/quick_unlock_private.idl
+++ b/chrome/common/extensions/api/quick_unlock_private.idl
@@ -19,8 +19,35 @@ namespace quickUnlockPrivate {
     PIN
   };
 
+  // The problems a given PIN might have.
+  enum CredentialProblem {
+    TOO_SHORT,
+    TOO_LONG,
+    TOO_WEAK,
+    CONTAINS_NONDIGIT
+  };
+
+  dictionary CredentialCheck {
+    // The given PINs errors. Users cannot proceed with an error.
+    CredentialProblem[] errors;
+    // THe given PINs warnings. Users can, but are not advised to proceed with
+    // a warning.
+    CredentialProblem[] warnings;
+  };
+
+  dictionary CredentialRequirements {
+    // The minimum allowed length for a PIN.
+    long minLength;
+    // The maximum allowed length for a PIN. A value of 0 indicates no maximum
+    // length.
+    long maxLength;
+  };
+
   callback BooleanResultCallback = void (boolean value);
   callback ModesCallback = void (QuickUnlockMode[] modes);
+  callback CredentialCheckCallback = void (CredentialCheck check);
+  callback CredentialRequirementsCallback =
+  void (CredentialRequirements requirements);

[stevenjb, 2016/12/01 17:32:13]

indent 4 spaces from start of previous line

[sammiequon, 2016/12/01 18:31:30]

Done.

 
   interface Functions {
     // Returns the set of quick unlock modes that are available for the user to
@@ -31,6 +58,22 @@ namespace quickUnlockPrivate {
     // the lock screen.
     static void getActiveModes(ModesCallback onComplete);
 
+    // Checks if the given credential can be used for the given unlock mode.
+    // Enterprise policy can change credential requirements.
+    // |mode|: The quick unlock mode that is used.
+    // |credential|: The given credential.
+    // |onComplete|: Called with a list of warnings and errors the given
+    // |credential| has (if any).

[stevenjb, 2016/12/01 17:32:13]

Indent comment 4 spaces (this looks like |credential| is described twice).
Also, elaborate '(if any)', e.g. 'or an empty list if there are none'

[sammiequon, 2016/12/01 18:31:30]

Done.

+    static void checkCredential(QuickUnlockMode mode,
+                                DOMString credential,
+                                CredentialCheckCallback onComplete);
+
+    // Gets the credential requirements for the given unlock mode.
+    // |mode|: The quick unlock mode that is used.
+    // |onComplete|: Called with the credential requirements of the given |mode|.

[stevenjb, 2016/12/01 17:32:13]

Line too long

[sammiequon, 2016/12/01 18:31:30]

Done.

+    static void getCredentialRequirements(
+    QuickUnlockMode mode, CredentialRequirementsCallback onComplete);

[stevenjb, 2016/12/01 17:32:13]

indent

[sammiequon, 2016/12/01 18:31:30]

Done.

+
     // Update the set of quick unlock modes that are currently active/enabled.
     // |accountPassword|: The password associated with the account (e.g. the
     // GAIA password). This is required to change the quick unlock credentials.