Reland "Android: Re-enable lint"

Original CL: http://crrev.com/c/577593

Fixes: Suppress lint errors for downstream targets.

TBR=mthiesse@chromium.org,agrieve@chromium.org

Bug: 739746,746409
Change-Id: Ib069fed8e77d1a55d75ae71592cea6096c46ff47
Reviewed-on: https://chromium-review.googlesource.com/577966Reviewed-by: Peter Wen <wnwen@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#488220}

build/android/lint/suppressions.xml

@@ -189,6 +189,8 @@ Still reading?
   <issue id="MissingVersion">
     <ignore path="AndroidManifest.xml"/>
   </issue>
+  <!-- TODO(crbug.com/739746): Remove once platform-tools is updated. -->
+  <issue id="NewApi" severity="ignore"/>
   <issue id="NewApi">
     <ignore regexp="Attribute `paddingStart` referenced here can result in a crash on some specific devices older than API 17"/>
     <ignore regexp="chrome/android/java/res/values-v17/styles.xml"/>
@@ -234,6 +236,7 @@ Still reading?
   </issue>
   <issue id="PackageManagerGetSignatures">
     <ignore regexp="chrome/android/webapk/libs/client/src/org/chromium/webapk/lib/client/WebApkValidator.java"/>
+    <ignore regexp="chrome/android/java/src/org/chromium/chrome/browser/customtabs/OriginVerifier.java"/>
   </issue>
   <issue id="PluralsCandidate" severity="Error">
     <ignore regexp="chrome/android/chrome_strings_grd.resources.zip/values-en-rGB/android_chrome_strings.xml"/>

build/config/android/config.gni

@@ -52,7 +52,7 @@ if (is_android) {
     # Purposefully repeated so that downstream can change
     # default_android_sdk_root without changing lint version.
     default_lint_android_sdk_root = "//third_party/android_tools/sdk"
-    default_lint_android_sdk_version = "25"
+    default_lint_android_sdk_version = "26"
   }
 
   if (!defined(default_extras_android_sdk_root)) {

chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java

@@ -120,6 +120,9 @@ public class VrShellDelegate
     private static VrShellDelegate sInstance;
     private static VrBroadcastReceiver sVrBroadcastReceiver;
     private static boolean sRegisteredDaydreamHook = false;
+
+    // TODO(crbug.com/746409): Remove this suppression after this lint error is fixed.
+    @SuppressWarnings("StaticFieldLeak")
     private static View sBlackOverlayView;
 
     private ChromeActivity mActivity;