Componentize IgnoreNavigationResourceThrottle and add chrome and webview specific implementations.

android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc

Index: android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
diff --git a/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc b/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
index cb5d870e7112089e0c5940d503ea7901378e8fce..d0fa95385f0d7c076d3af6a719ad5e579b2cd31b 100644
--- a/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
+++ b/android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.cc
@@ -8,6 +8,7 @@
 #include "android_webview/browser/aw_contents_io_thread_client.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
+#include "chrome/browser/component/navigation_interception/intercept_navigation_delegate.h"
 #include "content/public/browser/resource_controller.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/resource_dispatcher_host_login_delegate.h"
@@ -16,6 +17,8 @@
 #include "net/base/load_flags.h"
 #include "net/url_request/url_request.h"
 
+using navigation_interception::InterceptNavigationDelegate;
+
 namespace {
 
 base::LazyInstance<android_webview::AwResourceDispatcherHostDelegate>
@@ -77,6 +80,11 @@ void AwResourceDispatcherHostDelegate::RequestBeginning(
       request->set_load_flags(load_flags);
     }
   }
+
+  if (resource_type == ResourceType::MAIN_FRAME) {
+    throttles->push_back(InterceptNavigationDelegate::CreateThrottleFor(
+        request));
+  }
 }
 
 bool AwResourceDispatcherHostDelegate::AcceptAuthRequest(