Use Chromium's logging utility for content files

content/public/android/java/src/org/chromium/content/browser/BrowserStartupController.java

Index: content/public/android/java/src/org/chromium/content/browser/BrowserStartupController.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/BrowserStartupController.java b/content/public/android/java/src/org/chromium/content/browser/BrowserStartupController.java
index 784ab9e33e7a13e6e90db98954b56a729273079e..a7c830b4d1849d77559ad84ee1cf9fc32d7a2d95 100644
--- a/content/public/android/java/src/org/chromium/content/browser/BrowserStartupController.java
+++ b/content/public/android/java/src/org/chromium/content/browser/BrowserStartupController.java
@@ -6,10 +6,10 @@ package org.chromium.content.browser;
 
 import android.content.Context;
 import android.os.Handler;
-import android.util.Log;
 
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
+import org.chromium.base.Log;
 import org.chromium.base.ResourceExtractor;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.VisibleForTesting;
@@ -46,7 +46,7 @@ public class BrowserStartupController {
         void onFailure();
     }
 
-    private static final String TAG = "BrowserStartupController";
+    private static final String TAG = "cr.BrowserStartup";
 
     // Helper constants for {@link StartupCallback#onSuccess}.
     private static final boolean ALREADY_STARTED = true;
@@ -272,7 +272,7 @@ public class BrowserStartupController {
     void prepareToStartBrowserProcess(
             final boolean singleProcess, final Runnable completionCallback)
                     throws ProcessInitException {
-        Log.i(TAG, "Initializing chromium process, singleProcess=" + singleProcess);
+        Log.i(TAG, "Initializing chromium process, singleProcess=%b", singleProcess);
 
         // Normally Main.java will have kicked this off asynchronously for Chrome. But other
         // ContentView apps like tests also need them so we make sure we've extracted resources