Switch ChromeTestSuite to the same convention as ContentTestSuite:

chrome/browser/browsing_data_cookie_helper_unittest.cc

Index: chrome/browser/browsing_data_cookie_helper_unittest.cc
diff --git a/chrome/browser/browsing_data_cookie_helper_unittest.cc b/chrome/browser/browsing_data_cookie_helper_unittest.cc
index 44bc5ac3cfac48aaf2e006b2eb9eba0e09619b54..dda9b7e1fbfa1cf69499a047f6a45703e612c554 100644
--- a/chrome/browser/browsing_data_cookie_helper_unittest.cc
+++ b/chrome/browser/browsing_data_cookie_helper_unittest.cc
@@ -8,7 +8,6 @@
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/synchronization/waitable_event.h"
-#include "chrome/test/base/testing_browser_process_test.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/browser/browser_thread.h"
 #include "net/url_request/url_request_context_getter.h"
@@ -16,7 +15,7 @@
 
 namespace {
 
-class BrowsingDataCookieHelperTest : public TestingBrowserProcessTest {
+class BrowsingDataCookieHelperTest : public testing::Test {
  public:
   void SetUpOnIOThread(base::WaitableEvent* io_setup_complete) {
     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));