Add a file observer to monitor if there is a crash

chrome/android/java/src/org/chromium/chrome/browser/init/ChromeBrowserInitializer.java

Index: chrome/android/java/src/org/chromium/chrome/browser/init/ChromeBrowserInitializer.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/init/ChromeBrowserInitializer.java b/chrome/android/java/src/org/chromium/chrome/browser/init/ChromeBrowserInitializer.java
index e19384c1a63bd4d3304be51988b7ac2c983cbcea..f49b358c86d22ef6e0ebe2127ca0972e17f1e2f6 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/init/ChromeBrowserInitializer.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/init/ChromeBrowserInitializer.java
@@ -10,6 +10,7 @@ import android.os.Handler;
 import android.os.Looper;
 import android.os.Process;
 import android.preference.PreferenceManager;
+import android.text.TextUtils;
 
 import org.chromium.base.ActivityState;
 import org.chromium.base.ApplicationStatus;
@@ -28,10 +29,12 @@ import org.chromium.chrome.browser.ChromeApplication;
 import org.chromium.chrome.browser.ChromeStrictMode;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.FileProviderHelper;
+import org.chromium.chrome.browser.crash.MinidumpDirectoryObserver;
 import org.chromium.chrome.browser.device.DeviceClassManager;
 import org.chromium.chrome.browser.services.GoogleServicesManager;
 import org.chromium.chrome.browser.tabmodel.document.DocumentTabModelImpl;
 import org.chromium.chrome.browser.webapps.ActivityAssigner;
+import org.chromium.components.variations.VariationsAssociatedData;
 import org.chromium.content.app.ContentApplication;
 import org.chromium.content.browser.BrowserStartupController;
 import org.chromium.content.browser.DeviceUtils;
@@ -341,6 +344,11 @@ public class ChromeBrowserInitializer {
 
         mNativeInitializationComplete = true;
         ContentUriUtils.setFileProviderUtil(new FileProviderHelper());
+
+        if (TextUtils.equals("true", VariationsAssociatedData.getVariationParamValue(
+                        MinidumpDirectoryObserver.MINIDUMP_EXPERIMENT_NAME, "Enabled"))) {
+            MinidumpDirectoryObserver.startObserverWatching();
+        }
     }
 
     private void waitForDebuggerIfNeeded() {