Merge 132027 - Make the text input not require round-trips when the text is updated.

ppapi/shared_impl/ppb_instance_shared.h

Index: ppapi/shared_impl/ppb_instance_shared.h
===================================================================
--- ppapi/shared_impl/ppb_instance_shared.h	(revision 132273)
+++ ppapi/shared_impl/ppb_instance_shared.h	(working copy)
@@ -29,6 +29,11 @@
   // Error checks the given resquest to Request[Filtering]InputEvents. Returns
   // PP_OK if the given classes are all valid, PP_ERROR_NOTSUPPORTED if not.
   int32_t ValidateRequestInputEvents(bool is_filtering, uint32_t event_classes);
+
+  // The length of text to request as a surrounding context of selection.
+  // For now, the value is copied from the one with render_view_impl.cc.
+  // TODO(kinaba) implement a way to dynamically sync the requirement.
+  static const int kExtraCharsForTextInput;
 };
 
 }  // namespace ppapi