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
diff --git a/build/android/AndroidManifest.xml b/build/android/AndroidManifest.xml
index 25e1db0..f27872e 100644
--- a/build/android/AndroidManifest.xml
+++ b/build/android/AndroidManifest.xml
@@ -15,6 +15,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="dummy.package">
 
-    <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+    <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="22" />
 
 </manifest>