Move DeleteAfterReboot, Move, and ReplaceFile to base namespace

Rename ReplaceFileAndGetError (only used once) to ReplaceFile (used 5 times) and have each of those callers specify NULL for the output error if they don't care.

Remove InsertBeforeExtension from file_util.cc which seems to be unused.

BUG=

Review URL: https://codereview.chromium.org/18383003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@209532 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/component_updater/component_patcher_operation.cc b/chrome/browser/component_updater/component_patcher_operation.cc
index 0c119919..f8142380 100644
--- a/chrome/browser/component_updater/component_patcher_operation.cc
+++ b/chrome/browser/component_updater/component_patcher_operation.cc
@@ -150,7 +150,7 @@
 ComponentUnpacker::Error DeltaUpdateOpCreate::DoRun(ComponentPatcher*,
                                                     int* error) {
   *error = 0;
-  if (!file_util::Move(patch_abs_path_, output_abs_path_))
+  if (!base::Move(patch_abs_path_, output_abs_path_))
     return ComponentUnpacker::kDeltaOperationFailure;
 
   return ComponentUnpacker::kNone;