Moved the following IPC messages used by the chrome NPAPI plugin installer out of content

content/common/content_constants.h

Index: content/common/content_constants.h
===================================================================
--- content/common/content_constants.h	(revision 98657)
+++ content/common/content_constants.h	(working copy)
@@ -30,6 +30,10 @@
 extern const size_t kMaxURLChars;
 extern const size_t kMaxURLDisplayChars;
 
+// The render view and render process ids associated with the plugin instance.

[jam, 2011/08/31 17:34:42]

nit: this comment is a bit vague, since it's not clear that this is only for the
installer plugin

[ananta, 2011/08/31 20:18:14]

Done.

+extern const char kPluginRenderViewId[];
+extern const char kPluginRenderProcessId[];
+
 }  // namespace content
 
 #endif  // CONTENT_COMMON_CHROME_CONSTANTS_H_