Consistently use namespaced base::Version in components/update_client.

components/update_client/update_response.cc

Index: components/update_client/update_response.cc
diff --git a/components/update_client/update_response.cc b/components/update_client/update_response.cc
index e89a774ae7a77627b0800cf8b6218642c96de385..453f6a2f82033693606af990913238a5c4a9e98b 100644
--- a/components/update_client/update_response.cc
+++ b/components/update_client/update_response.cc
@@ -162,7 +162,7 @@ bool ParseManifestTag(xmlNode* manifest,
     *error = "Missing version for manifest.";
     return false;
   }
-  Version version(result->manifest.version);
+  base::Version version(result->manifest.version);
   if (!version.IsValid()) {
     *error = "Invalid version: '";
     *error += result->manifest.version;
@@ -174,7 +174,7 @@ bool ParseManifestTag(xmlNode* manifest,
   result->manifest.browser_min_version =
       GetAttribute(manifest, "prodversionmin");
   if (result->manifest.browser_min_version.length()) {
-    Version browser_min_version(result->manifest.browser_min_version);
+    base::Version browser_min_version(result->manifest.browser_min_version);
     if (!browser_min_version.IsValid()) {
       *error = "Invalid prodversionmin: '";
       *error += result->manifest.browser_min_version;