Update from https://crrev.com/327068

This rolls in //base, //build and //sandbox/linux and updates other
things to match, in particular:

*) Update build_v8.patch
*) Add junit, mockito and roboelectric to DEPS for android test rules
*) Update DEPS for grit
*) Fix up various GN files for os->target_os rename
*) Fix up a few places that were using //base/float_util to use std::isnan
*) Fix up a few places using ApiCompatibilityUtil to use Android SDK directly

as well as a few miscellaneous fixes.

Many portions based on ncbray's work in
https://codereview.chromium.org/1108173002/

R=ncbray@chromium.org
TBR=ncbray@chromium.org

Review URL: https://codereview.chromium.org/1124763003

engine/bindings/BUILD.gn

@@ -89,7 +89,7 @@ action("generate_snapshot_bin") {
     "--output_bin",
     rebase_path(isolate_snapshot, root_build_dir),
     "--target_os",
-    os,
+    target_os,
     "--url_mapping=dart:sky,$dart_sky_path",
     "--url_mapping=dart:mojo.internal,$internal_path",
     "--url_mapping=dart:sky_builtin,$builtin_path",

shell/org/domokit/sky/shell/SkyApplication.java

@@ -39,7 +39,7 @@ public class SkyApplication extends BaseChromiumApplication {
     }
 
     private void initializeJavaUtils() {
-        PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
+        PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX, getApplicationContext());
     }
 
     private void initializeNative() {