Extract Favicon Download logic from FaviconTabHelper

chrome/browser/favicon/DEPS

Index: chrome/browser/favicon/DEPS
diff --git a/chrome/browser/favicon/DEPS b/chrome/browser/favicon/DEPS
index 0b044f2ca6d9f4029efd73b0e5ef14ddc846dd42..943a1ecb2d754fedf806dce6ecd237004c3f2931 100644
--- a/chrome/browser/favicon/DEPS
+++ b/chrome/browser/favicon/DEPS
@@ -31,3 +31,24 @@
   # Do not add to the list of temporarily-allowed dependencies above,
   # and please do not introduce more #includes of these files.
 ]
+
+specific_include_rules = {
+  # TODO(caitkp): Look into removing history/ dependencies.
+  'favicon_download_helper(_delegate)*\.(h|cc)': [
+    "-chrome",
+    "-chrome/browser",
+    "+chrome/browser/favicon/favicon_download_helper.h",
+    "+chrome/browser/favicon/favicon_download_helper_delegate.h",
+    "+chrome/browser/favicon/favicon_util.h",
+    "+chrome/common/icon_messages.h",
+  ],
+
+  'favicon_util\.(h|cc)': [
+    "-chrome",
+    "-chrome/browser",
+    "+chrome/browser/favicon/favicon_util.h",
+    "+chrome/common/icon_messages.h",
+    "!chrome/browser/history/history_types.h",
+    "!chrome/browser/history/select_favicon_frames.h",
+  ]
+}