Add support for distilling current WebContents

components/dom_distiller/core/distiller_page.h

Index: components/dom_distiller/core/distiller_page.h
diff --git a/components/dom_distiller/core/distiller_page.h b/components/dom_distiller/core/distiller_page.h
index 429a676540baeac2d434850e6dac6032f219bdb8..b950df7f1bafed424dc57961cfb355003adb0998 100644
--- a/components/dom_distiller/core/distiller_page.h
+++ b/components/dom_distiller/core/distiller_page.h
@@ -29,6 +29,11 @@ struct DistilledPageInfo {
   DISALLOW_COPY_AND_ASSIGN(DistilledPageInfo);
 };
 
+class SourcePageHandle {
+ public:
+  virtual ~SourcePageHandle() {}
+};
+
 // Injects JavaScript into a page, and uses it to extract and return long-form
 // content. The class can be reused to load and distill multiple pages,
 // following the state transitions described along with the class's states.
@@ -62,10 +67,6 @@ class DistillerPage {
   // should be the same regardless of the DistillerPage implementation.
   virtual void DistillPageImpl(const GURL& url, const std::string& script) = 0;
 
-  // Called by |ExecuteJavaScript| to carry out platform-specific instructions
-  // to inject and execute JavaScript within the context of the loaded page.
-  //virtual void ExecuteJavaScriptImpl() = 0;
-
  private:
   bool ready_;
   DistillerPageCallback distiller_page_callback_;
@@ -81,6 +82,8 @@ class DistillerPageFactory {
   // should be very cheap, since the pages can be thrown away without being
   // used.
   virtual scoped_ptr<DistillerPage> CreateDistillerPage() const = 0;
+  virtual scoped_ptr<DistillerPage> CreateDistillerPageWithHandle(
+      scoped_ptr<SourcePageHandle> handle) const = 0;
 };
 
 }  // namespace dom_distiller