Disable thread checking for LGE email app

LGE's email app runs UI thread methods from InputConnection. As this is
becoming impossible, we need to work around LGE email case. Hopefully this
is the last webview app that does it.

BUG=651706

Review-Url: https://codereview.chromium.org/2392293002
Cr-Commit-Position: refs/heads/master@{#423878}

android_webview/glue/java/src/com/android/webview/chromium/WebViewChromiumFactoryProvider.java

@@ -12,7 +12,6 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Looper;
@@ -51,6 +50,7 @@ import org.chromium.base.BuildConfig;
 import org.chromium.base.CommandLine;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.MemoryPressureListener;
+import org.chromium.base.PackageUtils;
 import org.chromium.base.PathService;
 import org.chromium.base.PathUtils;
 import org.chromium.base.ThreadUtils;
@@ -529,30 +529,35 @@ public class WebViewChromiumFactoryProvider implements WebViewFactoryProvider {
         return new WebViewChromium(this, webView, privateAccess, mShouldDisableThreadChecking);
     }
 
-    // Check this as a workaround for https://crbug.com/622151.
+    // Check this as a workaround for crash issues.
     private boolean shouldDisableThreadChecking(Context context) {
+        // crbug.com/651706
+        final String lgeMailPackageId = "com.lge.email";
+        if (lgeMailPackageId.equals(context.getPackageName())) {
+            if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M + 1) return false;
+            int versionCode = PackageUtils.getPackageVersion(context, lgeMailPackageId);
+            // The version code is provided by LGE.
+            if (versionCode == -1 || versionCode >= 67700000) return false;
+            Log.w(TAG, "Disabling thread check in WebView (http://crbug.com/651706). "
+                    + "APK name: " + lgeMailPackageId + ", versionCode: " + versionCode);
+            return true;
+        }
+
+        // crbug.com/622151
         if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M) return false;
         final String htcMailPackageId = "com.htc.android.mail";
         if (!htcMailPackageId.equals(context.getPackageName())) return false;
-        try {
-            PackageInfo packageInfo =
-                    context.getPackageManager().getPackageInfo(htcMailPackageId, 0);
-            if (packageInfo == null) return false;
-
+        int versionCode = PackageUtils.getPackageVersion(context, htcMailPackageId);
+        if (versionCode == -1) return false;
         // These values are provided by HTC.
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M
-                    && packageInfo.versionCode >= 864021756) return false;
-            if (Build.VERSION.SDK_INT == Build.VERSION_CODES.M
-                    && packageInfo.versionCode >= 866001861) return false;
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M && versionCode >= 864021756) return false;
+        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.M && versionCode >= 866001861) {
+            return false;
+        }
 
         Log.w(TAG, "Disabling thread check in WebView (http://crbug.com/622151). "
-                    + "APK name: " + htcMailPackageId + ", versionCode: "
-                    + packageInfo.versionCode);
+                + "APK name: " + htcMailPackageId + ", versionCode: " + versionCode);
         return true;
-        } catch (NameNotFoundException e) {
-            // Ignore this exception and return false.
-        }
-        return false;
     }
 
     @Override