Includes GMS version in crash report.

base/android/java/src/org/chromium/base/BuildInfo.java

Index: base/android/java/src/org/chromium/base/BuildInfo.java
diff --git a/base/android/java/src/org/chromium/base/BuildInfo.java b/base/android/java/src/org/chromium/base/BuildInfo.java
index f55c35e78b7f39b61528297d02a574b7cfdacc20..eb5475b2a347f0c1c7d6e42318b5c4e3159fd16c 100644
--- a/base/android/java/src/org/chromium/base/BuildInfo.java
+++ b/base/android/java/src/org/chromium/base/BuildInfo.java
@@ -10,7 +10,6 @@ import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Build;
-import android.util.Log;
 
 import org.chromium.base.annotations.CalledByNative;
 
@@ -67,6 +66,21 @@ public class BuildInfo {
     }
 
     @CalledByNative
+    public static String getGMSVersionCode(Context context) {
+        String msg = "gms versionCode not available.";
+        try {
+            PackageManager packageManager = context.getPackageManager();
+            PackageInfo packageInfo = packageManager.getPackageInfo("com.google.android.gms", 0);
+            if (packageInfo.versionCode > 0) {

[Torne, 2016/06/03 14:10:10]

Seems like there isn't much point in doing this; we may as well just log
whatever value the field has?

[BigBossZhiling, 2016/06/09 22:19:59]

Done.

+                msg = Integer.toString(packageInfo.versionCode);
+            }
+        } catch (NameNotFoundException e) {
+            Log.d(TAG, "Error when trying to get gms version code: %s", e);

[Torne, 2016/06/03 14:10:10]

I'd probably just have this explicitly set msg to something that says the
package wasn't found - if you did that and also just logged the version code
unconditionally there'd be no need for a generic "version code not available"
message any more. This will only happen on devices that lack gmscore (where
chrome was presumably sideloaded and probably can't run anyway), or during the
middle of a gmscore update.

[BigBossZhiling, 2016/06/09 22:19:59]

Done.

+        }
+        return msg;
+    }
+
+    @CalledByNative
     public static String getPackageVersionCode(Context context) {
         String msg = "versionCode not available.";
         try {