Move the parsing of homepage_url" and "devtools_page" out of Extension.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index b2ae54b5268e0a8ee6c9291f1e4be9ddee1f282f..4161e4c8ba017a10fe41b542a2af7c57292ef566 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -21,8 +21,11 @@
 #include "chrome/common/content_settings_pattern.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/extension_process_policy.h"
 #include "chrome/common/extensions/extension_set.h"
+#include "chrome/common/extensions/manifest_handler.h"
+#include "chrome/common/extensions/manifest_url_handler.h"
 #include "chrome/common/external_ipc_fuzzer.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/localized_error.h"
@@ -117,6 +120,14 @@ using WebKit::WebVector;
 
 namespace {
 
+// Explicitly register all extension ManifestHandlers needed to parse
+// fields used in the renderer.
+void RegisterExtensionManifestHandlers() {
+  extensions::ManifestHandler::Register(
+      extension_manifest_keys::kDevToolsPage,
+      new extensions::DevToolsPageHandler);
+}
+
 static void AppendParams(const std::vector<string16>& additional_names,
                          const std::vector<string16>& additional_values,
                          WebVector<WebString>* existing_names,
@@ -258,6 +269,8 @@ void ChromeContentRendererClient::RenderThreadStarted() {
       extension_scheme);
   WebSecurityPolicy::registerURLSchemeAsBypassingContentSecurityPolicy(
       extension_resource_scheme);
+
+  RegisterExtensionManifestHandlers();
 }
 
 void ChromeContentRendererClient::RenderViewCreated(