Cleanup namespace usage in Source/web/[A-V]*.h

Source/web/LocalFileSystemClient.h

Index: Source/web/LocalFileSystemClient.h
diff --git a/Source/web/LocalFileSystemClient.h b/Source/web/LocalFileSystemClient.h
index 8a155922c18e2a5fbb93047ddfc893a8c5eaa6c3..0cea2c6950fc233c059805c62efb0cc612111df0 100644
--- a/Source/web/LocalFileSystemClient.h
+++ b/Source/web/LocalFileSystemClient.h
@@ -36,14 +36,14 @@
 
 namespace blink {
 
-class LocalFileSystemClient FINAL : public blink::FileSystemClient {
+class LocalFileSystemClient FINAL : public FileSystemClient {
 public:
     static PassOwnPtr<FileSystemClient> create();
 
     virtual ~LocalFileSystemClient();
 
-    virtual bool requestFileSystemAccessSync(blink::ExecutionContext*) OVERRIDE;
-    virtual void requestFileSystemAccessAsync(blink::ExecutionContext*, PassOwnPtr<blink::PermissionCallbacks>) OVERRIDE;
+    virtual bool requestFileSystemAccessSync(ExecutionContext*) OVERRIDE;
+    virtual void requestFileSystemAccessAsync(ExecutionContext*, PassOwnPtr<PermissionCallbacks>) OVERRIDE;
 
 private:
     LocalFileSystemClient();