Reuse WebCrypto's normalizeCryptoAlgorithm in enterprise.platformKeys.

chrome/test/data/extensions/api_test/enterprise_platform_keys/basic.js

Index: chrome/test/data/extensions/api_test/enterprise_platform_keys/basic.js
diff --git a/chrome/test/data/extensions/api_test/enterprise_platform_keys/basic.js b/chrome/test/data/extensions/api_test/enterprise_platform_keys/basic.js
index 557ae680c4cf2d22d441f75f4426449e1c7d161d..a9374e7a91cc3586a0e3dbc3102e925a40ae049d 100644
--- a/chrome/test/data/extensions/api_test/enterprise_platform_keys/basic.js
+++ b/chrome/test/data/extensions/api_test/enterprise_platform_keys/basic.js
@@ -358,6 +358,47 @@ function runTests(userToken) {
       ]);
     },
 
+    // Call generate key with invalid algorithm parameter, missing
+    // modulusLength.
+    function algorithmParameterMissingModulusLength() {
+      var algorithm = {
+        name: "RSASSA-PKCS1-v1_5",
+        publicExponent:
+            new Uint8Array([0x01, 0x00, 0x01]),  // Equivalent to 65537
+        hash: {
+          name: "SHA-1",
+        }
+      };
+      userToken.subtleCrypto.generateKey(algorithm, false, ['sign']).then(
+          function(keyPair) {
+            assertTrue(false, 'generateKey was expected to fail');
+          },
+          callbackPass(function(error) {
+      assertEq(
+          new Error('Error: A required parameter was missing our out-of-range'),
+          error);
+      }));
+    },
+
+    // Call generate key with invalid algorithm parameter, missing hash.
+    function algorithmParameterMissingHash() {
+      var algorithm = {
+        name: 'RSASSA-PKCS1-v1_5',
+        modulusLength: 512,
+        publicExponent:
+            new Uint8Array([0x01, 0x00, 0x01]),  // Equivalent to 65537
+      };
+      userToken.subtleCrypto.generateKey(algorithm, false, ['sign']).then(
+          function(keyPair) {
+            assertTrue(false, 'generateKey was expected to fail');
+          },
+          callbackPass(function(error) {
+      assertEq(
+          new Error('Error: A required parameter was missing our out-of-range'),
+          error);
+      }));
+    },
+
     // Imports a certificate for which now private key was imported/generated
     // before.
     function missingPrivateKey() {