FBTF: Moves code to the headers.

net/disk_cache/block_files.h

Index: net/disk_cache/block_files.h
diff --git a/net/disk_cache/block_files.h b/net/disk_cache/block_files.h
index 2e41750804a9c334530bd8c5002ceac1f606653b..5427a5851c99c025cabaa71f28ee5fa6c09ed4ec 100644
--- a/net/disk_cache/block_files.h
+++ b/net/disk_cache/block_files.h
@@ -23,8 +23,7 @@ namespace disk_cache {
 // This class handles the set of block-files open by the disk cache.
 class BlockFiles {
  public:
-  explicit BlockFiles(const FilePath& path)
-      : init_(false), zero_buffer_(NULL), path_(path) {}
+  explicit BlockFiles(const FilePath& path);
   ~BlockFiles();
 
   // Performs the object initialization. create_files indicates if the backing