Revert 3 CLs for shouldOverrideUrlLoading implementation.

android_webview/renderer/aw_content_renderer_client.h

Index: android_webview/renderer/aw_content_renderer_client.h
diff --git a/android_webview/renderer/aw_content_renderer_client.h b/android_webview/renderer/aw_content_renderer_client.h
index 8f054685ef5c1d6475e38155c9c7eaa15cab1168..a1717de52787307eab8c1bbfa98d821847f9ed51 100644
--- a/android_webview/renderer/aw_content_renderer_client.h
+++ b/android_webview/renderer/aw_content_renderer_client.h
@@ -38,6 +38,14 @@ class AwContentRendererClient : public content::ContentRendererClient {
   bool IsLinkVisited(unsigned long long link_hash) override;
   void AddKeySystems(std::vector<media::KeySystemInfo>* key_systems) override;
 
+  bool HandleNavigation(content::RenderFrame* render_frame,
+                        bool is_content_initiated,
+                        int opener_id,
+                        blink::WebFrame* frame,
+                        const blink::WebURLRequest& request,
+                        blink::WebNavigationType type,
+                        blink::WebNavigationPolicy default_policy,
+                        bool is_redirect) override;
   bool ShouldOverridePageVisibilityState(
       const content::RenderFrame* render_frame,
       blink::WebPageVisibilityState* override_state) override;