Implement <webview>.addContentScript/removeContentScript API [1]

extensions/browser/guest_view/web_view/web_view_renderer_state.h

Index: extensions/browser/guest_view/web_view/web_view_renderer_state.h
diff --git a/extensions/browser/guest_view/web_view/web_view_renderer_state.h b/extensions/browser/guest_view/web_view/web_view_renderer_state.h
index 92882c7ece0a392353d5977b8ebb032ab2d02a9e..42b886f0fc06965b4bba7cf731ba6c711d61fdc8 100644
--- a/extensions/browser/guest_view/web_view/web_view_renderer_state.h
+++ b/extensions/browser/guest_view/web_view/web_view_renderer_state.h
@@ -6,6 +6,7 @@
 #define EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_RENDERER_STATE_H_
 
 #include <map>
+#include <set>
 #include <string>
 #include <utility>
 
@@ -25,6 +26,10 @@ class WebViewRendererState {
     int rules_registry_id;
     std::string partition_id;
     std::string owner_extension_id;
+    std::set<int> content_script_ids;
+
+    WebViewInfo();
+    ~WebViewInfo();
   };
 
   static WebViewRendererState* GetInstance();
@@ -47,6 +52,13 @@ class WebViewRendererState {
   // Returns true if the given renderer is used by webviews.
   bool IsGuest(int render_process_id);
 
+  void AddContentScriptIDs(int embedder_process_id,
+                           int view_instance_id,
+                           const std::set<int>& script_ids);
+  void RemoveContentScriptIDs(int embedder_process_id,
+                              int view_instance_id,
+                              const std::set<int>& script_ids);
+
  private:
   friend class WebViewGuest;
   friend struct DefaultSingletonTraits<WebViewRendererState>;