Replace FilePath with base::FilePath in some more top level directories.

printing/printed_document.cc

Index: printing/printed_document.cc
diff --git a/printing/printed_document.cc b/printing/printed_document.cc
index 76860550e4e582f0edf9d68d0fe835bd0ca63424..32a88097b531fb161219d6e9ab3b170ff5d02a60 100644
--- a/printing/printed_document.cc
+++ b/printing/printed_document.cc
@@ -34,7 +34,7 @@ struct PrintDebugDumpPath {
   }
 
   bool enabled;
-  FilePath debug_dump_path;
+  base::FilePath debug_dump_path;
 };
 
 base::LazyInstance<PrintDebugDumpPath> g_debug_dump_info =
@@ -191,12 +191,13 @@ void PrintedDocument::DebugDump(const PrintedPage& page) {
 #endif  // OS_WIN
 }
 
-void PrintedDocument::set_debug_dump_path(const FilePath& debug_dump_path) {
+void PrintedDocument::set_debug_dump_path(
+    const base::FilePath& debug_dump_path) {
   g_debug_dump_info.Get().enabled = !debug_dump_path.empty();
   g_debug_dump_info.Get().debug_dump_path = debug_dump_path;
 }
 
-const FilePath& PrintedDocument::debug_dump_path() {
+const base::FilePath& PrintedDocument::debug_dump_path() {
   return g_debug_dump_info.Get().debug_dump_path;
 }