DevTools: make legacy audits remote

Because legacy audits is deprecated and has very low usage, 
we should make it a remote module to slim down Chrome's binary size.

Bug: 717085
Change-Id: I9e79912853a1340f059b8787d53de36b3f2343ad
Reviewed-on: https://chromium-review.googlesource.com/692991
Commit-Queue: Will Chen <chenwilliam@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505839}

third_party/WebKit/Source/devtools/BUILD.gn

@@ -956,7 +956,6 @@ generated_applications = [
 
 generated_non_autostart_non_remote_modules = [
   "$resources_out_dir/animation/animation_module.js",
-  "$resources_out_dir/audits/audits_module.js",
   "$resources_out_dir/audits2/audits2_module.js",
   "$resources_out_dir/changes/changes_module.js",
   "$resources_out_dir/cm/cm_module.js",

third_party/WebKit/Source/devtools/front_end/inspector.json

@@ -25,7 +25,7 @@
         { "name": "product_registry_impl", "condition": "!v8only", "type": "remote" },
         { "name": "profiler" },
         { "name": "resources", "condition": "!v8only" },
-        { "name": "audits", "condition": "!v8only" },
+        { "name": "audits", "condition": "!v8only", "type": "remote" },
         { "name": "audits2", "condition": "!v8only" },
         { "name": "devices" },
         { "name": "security", "condition": "!v8only" },

third_party/WebKit/Source/devtools/front_end/integration_test_runner.json

@@ -51,7 +51,7 @@
     { "name": "product_registry_impl", "condition": "!v8only", "type": "remote" },
     { "name": "profiler" },
     { "name": "resources", "condition": "!v8only" },
-    { "name": "audits", "condition": "!v8only" },
+    { "name": "audits", "condition": "!v8only", "type": "remote" },
     { "name": "audits2", "condition": "!v8only" },
     { "name": "devices" },
     { "name": "security", "condition": "!v8only" },