Renaming poorly named classes and adding missing unit tests.

chrome/browser/renderer_host/safe_browsing_resource_throttle.cc

Index: chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
diff --git a/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc b/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
index 891d9ac81cb6e062c9819d02ff9a22bfbefbaf9c..debf3261dc178ffbfd0527eb4b55635a978c053a 100644
--- a/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
+++ b/chrome/browser/renderer_host/safe_browsing_resource_throttle.cc
@@ -6,7 +6,7 @@
 
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/prerender/prerender_tracker.h"
+#include "chrome/browser/prerender/prerender_render_view_tracker.h"
 #include "chrome/browser/renderer_host/chrome_url_request_user_data.h"
 #include "content/public/browser/resource_throttle_controller.h"
 #include "net/base/load_flags.h"
@@ -115,9 +115,9 @@ void SafeBrowsingResourceThrottle::OnBrowseUrlCheckResult(
       ChromeURLRequestUserData* user_data =
           ChromeURLRequestUserData::Get(request_);
       if (user_data && user_data->is_prerender()) {
-        prerender::PrerenderTracker* prerender_tracker = g_browser_process->
-            prerender_tracker();
-        if (prerender_tracker->TryCancelOnIOThread(
+        prerender::PrerenderRenderViewTracker* prerender_render_view_tracker =
+            g_browser_process->prerender_render_view_tracker();
+        if (prerender_render_view_tracker->TryCancelOnIOThread(
                 render_process_host_id_,
                 render_view_id_,
                 prerender::FINAL_STATUS_SAFE_BROWSING)) {