Componentize safe_browsing [1]: create component, move messages, constants and switches.

chrome/renderer/BUILD.gn

Index: chrome/renderer/BUILD.gn
diff --git a/chrome/renderer/BUILD.gn b/chrome/renderer/BUILD.gn
index 845006ae94cf30e9faada011609aca52caf0f3e9..16fb1272f13cf15bd3537312fa08d49cd3be9d38 100644
--- a/chrome/renderer/BUILD.gn
+++ b/chrome/renderer/BUILD.gn
@@ -208,6 +208,7 @@ static_library("renderer") {
       ]
       deps += [
         "//chrome/common/safe_browsing:proto",
+        "//components/safe_browsing/common:common",

[Nathan Parker, 2016/10/28 17:55:07]

If this code is needed on Android, then it should get added for
safe_browsing_mode == 2 (or !=0 really)

[timvolodine, 2016/11/04 17:53:02]

yes correct thanks, the thread_dom_details.cc actually depends on it so need to
be inside the !=0.
Done.

         "//third_party/smhasher:murmurhash3",
       ]
     }