[Tracing] Move tracing switches to components

We plan to add --trace-config-file flag, which will be needed by components/tracing. This CL moves all existing tracing switches to components. And the next CL will add the --trace-config-file.

Design doc for Add --trace-config-file:
https://docs.google.com/document/d/1PgdXUOJF3WtEmYWUyGRbC2Fz2ICCZKO9jPvpLPRSHH8/edit?usp=sharing

BUG=482098,515323

Review URL: https://codereview.chromium.org/1300733004

Cr-Commit-Position: refs/heads/master@{#344079}
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index c63ea3c..a88e887 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -154,6 +154,7 @@
     "//components/strings",
     "//components/suggestions",
     "//components/sync_driver",
+    "//components/tracing:startup_tracing",
     "//components/translate/core/browser",
     "//components/translate/core/common",
     "//components/ui/zoom:ui_zoom",