Make SharedMemory use uint32 instead of size_t.  This removes the remaining size_t's from the IPC code.

Review URL: http://codereview.chromium.org/581001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@39164 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/printing/printed_document.h b/printing/printed_document.h
index ca5e663..7b3079e 100644
--- a/printing/printed_document.h
+++ b/printing/printed_document.h
@@ -71,7 +71,7 @@
 
   // Retrieves the current memory usage of the renderer pages.
   // Note: locks for a short amount of time.
-  size_t MemoryUsage() const;
+  uint32 MemoryUsage() const;
 
   // Sets the number of pages in the document to be rendered. Can only be set
   // once.