Re-try r29078: Remove some deprecated file_util wstring functions.

chrome/installer/util/copy_tree_work_item.cc

Index: chrome/installer/util/copy_tree_work_item.cc
===================================================================
--- chrome/installer/util/copy_tree_work_item.cc	(revision 29088)
+++ chrome/installer/util/copy_tree_work_item.cc	(working copy)
@@ -31,7 +31,7 @@
 
 bool CopyTreeWorkItem::Do() {
   if (!file_util::PathExists(source_path_)) {
-    LOG(ERROR) << source_path_ << " does not exist";
+    LOG(ERROR) << source_path_.value() << " does not exist";
     return false;
   }
 
@@ -39,29 +39,29 @@
   // handle overwrite_option_ = IF_DIFFERENT case.
   if ((dest_exist) &&
       (overwrite_option_ == WorkItem::IF_DIFFERENT) && // only for single file
-      (!PathIsDirectory(source_path_.c_str())) &&
-      (!PathIsDirectory(dest_path_.c_str())) &&
+      (!file_util::DirectoryExists(source_path_)) &&
+      (!file_util::DirectoryExists(dest_path_)) &&
       (file_util::ContentsEqual(source_path_, dest_path_))) {
-    LOG(INFO) << "Source file " << source_path_
-              << " and destination file " << dest_path_
+    LOG(INFO) << "Source file " << source_path_.value()
+              << " and destination file " << dest_path_.value()
               << " are exactly same. Returning true.";
     return true;
   } else if ((dest_exist) &&
              (overwrite_option_ == WorkItem::NEW_NAME_IF_IN_USE) &&
-             (!PathIsDirectory(source_path_.c_str())) &&
-             (!PathIsDirectory(dest_path_.c_str())) &&
+             (!file_util::DirectoryExists(source_path_)) &&
+             (!file_util::DirectoryExists(dest_path_)) &&
              (IsFileInUse(dest_path_))) {
     // handle overwrite_option_ = NEW_NAME_IF_IN_USE case.
     if (alternative_path_.empty() ||
         file_util::PathExists(alternative_path_) ||
         !file_util::CopyFile(source_path_, alternative_path_)) {
-      LOG(ERROR) << "failed to copy " << source_path_ <<
-                    " to " << alternative_path_;
+      LOG(ERROR) << "failed to copy " << source_path_.value() <<
+                    " to " << alternative_path_.value();
       return false;
     } else {
       copied_to_alternate_path_ = true;
-      LOG(INFO) << "Copied source file " << source_path_
-                << " to alternative path " << alternative_path_;
+      LOG(INFO) << "Copied source file " << source_path_.value()
+                << " to alternative path " << alternative_path_.value();
       return true;
     }
   } else if ((dest_exist) &&
@@ -77,10 +77,11 @@
 
     if (file_util::Move(dest_path_, backup_path_)) {
       moved_to_backup_ = true;
-      LOG(INFO) << "Moved destination " << dest_path_
-                << " to backup path " << backup_path_;
+      LOG(INFO) << "Moved destination " << dest_path_.value() <<
+                   " to backup path " << backup_path_.value();
     } else {
-      LOG(ERROR) << "failed moving " << dest_path_ << " to " << backup_path_;
+      LOG(ERROR) << "failed moving " << dest_path_.value() << " to " <<
+                     backup_path_.value();
       return false;
     }
   }
@@ -88,10 +89,11 @@
   // In all cases that reach here, copy source to destination.
   if (file_util::CopyDirectory(source_path_, dest_path_, true)) {
     copied_to_dest_path_ = true;
-    LOG(INFO) << "Copied source " << source_path_
-              << " to destination " << dest_path_;
+    LOG(INFO) << "Copied source " << source_path_.value()
+              << " to destination " << dest_path_.value();
   } else {
-    LOG(ERROR) << "failed copy " << source_path_ << " to " << dest_path_;
+    LOG(ERROR) << "failed copy " << source_path_.value() <<
+                  " to " << dest_path_.value();
     return false;
   }
 
@@ -105,22 +107,23 @@
   // Delete here. For now we just log the error and continue with the
   // rest of rollback operation.
   if (copied_to_dest_path_ && !file_util::Delete(dest_path_, true)) {
-    LOG(ERROR) << "Can not delete " << dest_path_;
+    LOG(ERROR) << "Can not delete " << dest_path_.value();
   }
   if (moved_to_backup_ && !file_util::Move(backup_path_, dest_path_)) {
-    LOG(ERROR) << "failed move " << backup_path_ << " to " << dest_path_;
+    LOG(ERROR) << "failed move " << backup_path_.value() << " to " <<
+                  dest_path_.value();
   }
   if (copied_to_alternate_path_ &&
       !file_util::Delete(alternative_path_, true)) {
-    LOG(ERROR) << "Can not delete " << alternative_path_;
+    LOG(ERROR) << "Can not delete " << alternative_path_.value();
   }
 }
 
-bool CopyTreeWorkItem::IsFileInUse(const std::wstring& path) {
+bool CopyTreeWorkItem::IsFileInUse(const FilePath& path) {
   if (!file_util::PathExists(path))
     return false;
 
-  HANDLE handle = ::CreateFile(path.c_str(), FILE_ALL_ACCESS,
+  HANDLE handle = ::CreateFile(path.value().c_str(), FILE_ALL_ACCESS,
                                NULL, NULL, OPEN_EXISTING, NULL, NULL);
   if (handle  == INVALID_HANDLE_VALUE)
     return true;
@@ -130,16 +133,14 @@
 }
 
 bool CopyTreeWorkItem::GetBackupPath() {
-  std::wstring file_name = file_util::GetFilenameFromPath(dest_path_);
-  backup_path_.assign(temp_dir_);
-  file_util::AppendToPath(&backup_path_, file_name);
+  backup_path_ = temp_dir_.Append(dest_path_.BaseName());
 
   if (file_util::PathExists(backup_path_)) {
     // Ideally we should not fail immediately. Instead we could try some
     // random paths under temp_dir_ until we reach certain limit.
     // For now our caller always provides a good temporary directory so
     // we don't bother.
-    LOG(ERROR) << "backup path " << backup_path_ << " already exists";
+    LOG(ERROR) << "backup path " << backup_path_.value() << " already exists";
     return false;
   }