Eliminate GoogleURLTracker's dependence on //chrome-level switches

chrome/browser/google/google_url_tracker_unittest.cc

Index: chrome/browser/google/google_url_tracker_unittest.cc
diff --git a/chrome/browser/google/google_url_tracker_unittest.cc b/chrome/browser/google/google_url_tracker_unittest.cc
index cd6a3c4f4b45a5a055442fc5d7cef421a10f0678..81f9e82d35bc8b1358e8e0ec72bf5f6daff3ad30 100644
--- a/chrome/browser/google/google_url_tracker_unittest.cc
+++ b/chrome/browser/google/google_url_tracker_unittest.cc
@@ -116,6 +116,7 @@ class TestGoogleURLTrackerClient : public GoogleURLTrackerClient {
 
   virtual void SetListeningForNavigationStart(bool listen) OVERRIDE;
   virtual bool IsListeningForNavigationStart() OVERRIDE;
+  virtual bool IsBackgroundNetworkingEnabled() OVERRIDE;
 
  private:
   bool observe_nav_start_;
@@ -138,6 +139,10 @@ bool TestGoogleURLTrackerClient::IsListeningForNavigationStart() {
   return observe_nav_start_;
 }
 
+bool TestGoogleURLTrackerClient::IsBackgroundNetworkingEnabled() {
+  return true;
+}
+
 
 // TestGoogleURLTrackerNavigationHelper ---------------------------------------