Update WebLocalFrameImpl with WebLocalFrameBase to break dependencies.

third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp

Index: third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp b/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
index ccd9415c89e5ec5025cbb223d7992660433698c9..9566f05d20c864c3ec54f7960c1998fa8a502339 100644
--- a/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
+++ b/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
@@ -5,6 +5,7 @@
 #include "core/loader/DocumentLoader.h"
 
 #include <queue>
+#include "core/frame/WebLocalFrameBase.h"
 #include "core/page/Page.h"
 #include "platform/testing/URLTestHelpers.h"
 #include "platform/testing/UnitTestHelpers.h"
@@ -13,7 +14,6 @@
 #include "public/platform/WebURLLoaderClient.h"
 #include "public/platform/WebURLLoaderMockFactory.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "web/WebLocalFrameImpl.h"
 #include "web/tests/FrameTestHelpers.h"
 
 namespace blink {
@@ -35,7 +35,7 @@ class DocumentLoaderTest : public ::testing::Test {
         ->UnregisterAllURLsAndClearMemoryCache();
   }
 
-  WebLocalFrameImpl* MainFrame() {
+  WebLocalFrameBase* MainFrame() {
     return web_view_helper_.WebView()->MainFrameImpl();
   }