Reorganize components/safe_browsing into a layered component

This reorganizes components/safe_browsing into core/ and content/
subdirectories. Re-factoring in future CLs will remove the remaining
content/ dependencies from components/safe_browsing/core/. This will allow
components/safe_browsing/core/ to be used from within ios/, where content/
dependencies are forbidden.

Design doc: go/ios-safe-browsing-dd

All changes outside components/safe_browsing in this CL are for updating
components/safe_browsing.

Within components/safe_browsing, the changes involve moving files,
updating #includes, moving or splitting BUILD.gn files, copying
DEPS files, and fixing pre-existing presumbit errors.

A future CL will add restrictions to DEPS files within
components/safe_browsing/core to prevent the introduction of new content/
dependencies.

TBR=boliu,thakis,kolos,jkarlin,mbarbella,mkwst

Change-Id: I25db07e2be2d764e5ffaa2a2a9b6634ada8c65c5
Bug: 1028755
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1943623
Reviewed-by: Ali Juma <[email protected]>
Reviewed-by: Nico Weber <[email protected]>
Reviewed-by: Bo <[email protected]>
Reviewed-by: Josh Karlin <[email protected]>
Reviewed-by: Varun Khaneja <[email protected]>
Commit-Queue: Ali Juma <[email protected]>
Cr-Commit-Position: refs/heads/master@{#728969}
diff --git a/chrome/browser/prefs/pref_functional_browsertest.cc b/chrome/browser/prefs/pref_functional_browsertest.cc
index 29a9b4e..a66a403 100644
--- a/chrome/browser/prefs/pref_functional_browsertest.cc
+++ b/chrome/browser/prefs/pref_functional_browsertest.cc
@@ -22,7 +22,7 @@
 #include "components/content_settings/core/browser/website_settings_registry.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 #include "components/content_settings/core/common/pref_names.h"
-#include "components/safe_browsing/common/safe_browsing_prefs.h"
+#include "components/safe_browsing/core/common/safe_browsing_prefs.h"
 #include "components/sync_preferences/pref_service_syncable.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/test/browser_test_utils.h"