Reorganize net/disk_cache into backend specific directories.

net/disk_cache/blockfile/backend_impl_v3.cc

Index: net/disk_cache/blockfile/backend_impl_v3.cc
diff --git a/net/disk_cache/v3/backend_impl_v3.cc b/net/disk_cache/blockfile/backend_impl_v3.cc
similarity index 99%
rename from net/disk_cache/v3/backend_impl_v3.cc
rename to net/disk_cache/blockfile/backend_impl_v3.cc
index 67dc86124a4cb825eba5b2032e3b61576a97122e..ce0b8d01f13cdb9f026dbaf2c1cda405dbf1b985 100644
--- a/net/disk_cache/v3/backend_impl_v3.cc
+++ b/net/disk_cache/blockfile/backend_impl_v3.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "net/disk_cache/v3/backend_impl_v3.h"
+#include "net/disk_cache/blockfile/backend_impl_v3.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ -21,15 +21,15 @@
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "net/base/net_errors.h"
+#include "net/disk_cache/blockfile/disk_format_v3.h"
+#include "net/disk_cache/blockfile/entry_impl_v3.h"
+#include "net/disk_cache/blockfile/errors.h"
+#include "net/disk_cache/blockfile/experiments.h"
+#include "net/disk_cache/blockfile/file.h"
+#include "net/disk_cache/blockfile/histogram_macros_v3.h"
+#include "net/disk_cache/blockfile/index_table_v3.h"
+#include "net/disk_cache/blockfile/storage_block-inl.h"
 #include "net/disk_cache/cache_util.h"
-#include "net/disk_cache/errors.h"
-#include "net/disk_cache/experiments.h"
-#include "net/disk_cache/file.h"
-#include "net/disk_cache/storage_block-inl.h"
-#include "net/disk_cache/v3/disk_format_v3.h"
-#include "net/disk_cache/v3/entry_impl_v3.h"
-#include "net/disk_cache/v3/histogram_macros.h"
-#include "net/disk_cache/v3/index_table.h"
 
 // Provide a BackendImpl object to macros from histogram_macros.h.
 #define CACHE_UMA_BACKEND_IMPL_OBJ this