Expose the capturePicture feature in RenderView for Android WebView legacy API support.

content/public/common/content_client.h

Index: content/public/common/content_client.h
diff --git a/content/public/common/content_client.h b/content/public/common/content_client.h
index 85a46adeeeaa1bc964c33c5bfb5a572d9890f083..77d084a3d706668d163aadf6b4c5659e811c0b58 100644
--- a/content/public/common/content_client.h
+++ b/content/public/common/content_client.h
@@ -104,6 +104,9 @@ class CONTENT_EXPORT ContentClient {
       std::vector<std::string>* standard_schemes,
       std::vector<std::string>* savable_schemes) {}
 
+  // Returns whether the given message should be sent in a swapped out renderer.
+  virtual bool CanSendWhileSwappedOut(const IPC::Message* message);
+
   // Returns whether the given message should be processed in the browser on
   // behalf of a swapped out renderer.
   virtual bool CanHandleWhileSwappedOut(const IPC::Message& message);