Migrate webkit/browser/ to storage/browser/

using TBR because Darin told me he defers to James' judgement. Using NOTRY because there is one presubmit error (dump_file_system.cc was moved and it spews printf).

BUG=338338
[email protected]
NOTRY=true

Review URL: https://codereview.chromium.org/539143002

Cr-Commit-Position: refs/heads/master@{#293547}
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index d3dc853..01d6c72 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -166,6 +166,7 @@
       "//mojo/system",
       "//net:extras",
       "//net:net_with_v8",
+      "//storage/browser",
       "//storage/common",
       "//third_party/WebKit/public:resources",
       "//third_party/expat",
@@ -180,7 +181,6 @@
       "//ui/surface",
       "//ui/web_dialogs",
       "//v8",
-      "//webkit/browser:storage",
       ## TODO(tonyg): Remove this dependency (crbug.com/280157).
       #"../testing/perf/perf_test.gyp:*",  TODO(GYP)
     ]