Start splitting out WebUI into an implementation class and an interface that each page implements...

content/public/common/content_client.h

Index: content/public/common/content_client.h
===================================================================
--- content/public/common/content_client.h	(revision 117388)
+++ content/public/common/content_client.h	(working copy)
@@ -30,7 +30,11 @@
 namespace npapi {
 class PluginList;
 }
+
+namespace ppapi {
+class HostGlobals;
 }
+}
 
 namespace content {
 
@@ -57,6 +61,10 @@
 // webkit_glue.
 CONTENT_EXPORT const std::string& GetUserAgent(const GURL& url);
 
+// Returns the PPAPI global singleton. See webkit/plugins/ppapi/host_globals.h
+// TODO(dpranke): Also needed since webkit_glue is a library.
+CONTENT_EXPORT webkit::ppapi::HostGlobals* GetHostGlobals();
+
 // Interface that the embedder implements.
 class CONTENT_EXPORT ContentClient {
  public: