This CL makes the TranslationService class send the text to be translated to ...

chrome/common/render_messages.h

Index: chrome/common/render_messages.h
===================================================================
--- chrome/common/render_messages.h	(revision 37411)
+++ chrome/common/render_messages.h	(working copy)
@@ -581,6 +581,9 @@
   // An id used to identify that specific translation.
   int work_id;
 
+  // The id of the page this translation originated from.
+  int page_id;
+
   // The text chunks that need to be translated.
   std::vector<string16> text_chunks;
 
@@ -2457,6 +2460,7 @@
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, p.routing_id);
     WriteParam(m, p.work_id);
+    WriteParam(m, p.page_id);
     WriteParam(m, p.text_chunks);
     WriteParam(m, p.from_language);
     WriteParam(m, p.to_language);
@@ -2467,6 +2471,7 @@
     return
       ReadParam(m, iter, &p->routing_id) &&
       ReadParam(m, iter, &p->work_id) &&
+      ReadParam(m, iter, &p->page_id) &&
       ReadParam(m, iter, &p->text_chunks) &&
       ReadParam(m, iter, &p->from_language) &&
       ReadParam(m, iter, &p->to_language) &&
@@ -2478,6 +2483,8 @@
     l->append(L", ");
     LogParam(p.work_id, l);
     l->append(L", ");
+    LogParam(p.page_id, l);
+    l->append(L", ");
     LogParam(p.text_chunks, l);
     l->append(L", ");
     LogParam(p.from_language, l);