Always create safe browsing specific directory in WebView.

We need to create the safe browsing directory for storing
safe browsing related cookies. This should happen in any case
as the safe browsing functionality can be enabled on a
per webview basis at runtime.

BUG=700351, 688629

Review-Url: https://codereview.chromium.org/2969693002
Cr-Commit-Position: refs/heads/master@{#485595}

android_webview/browser/aw_browser_main_parts.cc

@@ -9,7 +9,6 @@
 #include "android_webview/browser/aw_content_browser_client.h"
 #include "android_webview/browser/aw_metrics_service_client.h"
 #include "android_webview/browser/aw_result_codes.h"
-#include "android_webview/browser/aw_safe_browsing_config_helper.h"
 #include "android_webview/browser/deferred_gpu_command_service.h"
 #include "android_webview/browser/net/aw_network_change_notifier_factory.h"
 #include "android_webview/common/aw_descriptors.h"
@@ -135,13 +134,15 @@ int AwBrowserMainParts::PreCreateThreads() {
     }
   }
 
-  if (AwSafeBrowsingConfigHelper::GetSafeBrowsingEnabled()) {
-    base::FilePath safe_browsing_dir;
-    if (PathService::Get(android_webview::DIR_SAFE_BROWSING,
-                         &safe_browsing_dir)) {
-      if (!base::PathExists(safe_browsing_dir))
-        base::CreateDirectory(safe_browsing_dir);
-    }
+  // We need to create the safe browsing specific directory even if the
+  // AwSafeBrowsingConfigHelper::GetSafeBrowsingEnabled() is false
+  // initially, because safe browsing can be enabled later at runtime
+  // on a per-webview basis.
+  base::FilePath safe_browsing_dir;
+  if (PathService::Get(android_webview::DIR_SAFE_BROWSING,
+                       &safe_browsing_dir)) {
+    if (!base::PathExists(safe_browsing_dir))
+      base::CreateDirectory(safe_browsing_dir);
   }
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(