Added 'launcher_page' field to extension manifest.json format.

chrome/browser/ui/app_list/app_list_view_delegate.cc

Index: chrome/browser/ui/app_list/app_list_view_delegate.cc
diff --git a/chrome/browser/ui/app_list/app_list_view_delegate.cc b/chrome/browser/ui/app_list/app_list_view_delegate.cc
index 7e7a94b65efe7c864bc1d6c9f2d30816f95e35f6..09b507c9de82057a3fc7e6d4d000c8534da20b48 100644
--- a/chrome/browser/ui/app_list/app_list_view_delegate.cc
+++ b/chrome/browser/ui/app_list/app_list_view_delegate.cc
@@ -40,6 +40,9 @@
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/constants.h"
+#include "extensions/common/extension_set.h"
+#include "extensions/common/manifest.h"
+#include "extensions/common/manifest_constants.h"
 #include "grit/theme_resources.h"
 #include "ui/app_list/app_list_switches.h"
 #include "ui/app_list/app_list_view_delegate_observer.h"
@@ -106,14 +109,14 @@ void PopulateUsers(const ProfileInfoCache& profile_info,
 // Gets a list of URLs of the custom launcher pages to show in the launcher.
 // Returns a URL for each installed launcher page. If --custom-launcher-page is
 // specified and valid, also includes that URL.
-void GetCustomLauncherPageUrls(std::vector<GURL>* urls) {
+void GetCustomLauncherPageUrls(content::BrowserContext* browser_context,
+                               std::vector<GURL>* urls) {
   // First, check the command line.
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   if (app_list::switches::IsExperimentalAppListEnabled() &&
       command_line->HasSwitch(switches::kCustomLauncherPage)) {
     GURL custom_launcher_page_url(
         command_line->GetSwitchValueASCII(switches::kCustomLauncherPage));
-
     if (custom_launcher_page_url.SchemeIs(extensions::kExtensionScheme)) {
       urls->push_back(custom_launcher_page_url);
     } else {
@@ -122,8 +125,29 @@ void GetCustomLauncherPageUrls(std::vector<GURL>* urls) {
     }
   }
 
-  // TODO(mgiuca): Search the list of installed extensions and add any with a
-  // 'launcher_page' attribute in its manifest.
+  // Search the list of installed extensions for ones with 'launcher_page'.
+  extensions::ExtensionRegistry* extension_registry =
+      extensions::ExtensionRegistry::Get(browser_context);
+  const extensions::ExtensionSet& enabled_extensions =
+      extension_registry->enabled_extensions();
+  for (extensions::ExtensionSet::const_iterator it = enabled_extensions.begin();
+       it != enabled_extensions.end();
+       ++it) {
+    const extensions::Extension* extension = it->get();
+    const extensions::Manifest* manifest = extension->manifest();
+    if (!manifest->HasKey(extensions::manifest_keys::kLauncherPage))
+      continue;
+    std::string launcher_page_page;
+    if (!manifest->GetString(extensions::manifest_keys::kLauncherPagePage,
+                             &launcher_page_page)) {
+      LOG(ERROR) << "Extension " << extension->id() << ": "
+                 << extensions::manifest_keys::kLauncherPage << " has no "
+                 << extensions::manifest_keys::kLauncherPagePage
+                 << ". Ignoring launcher page.";

[Matt Giuca, 2014/08/15 04:17:09]

This makes a pretty comical error message now:
"launcher_page has no launcher_page.page. Ignoring launcher page."

I'll change it.

[Matt Giuca, 2014/08/15 04:20:00]

Done.

+      continue;
+    }
+    urls->push_back(extension->GetResourceURL(launcher_page_page));
+  }
 }
 
 }  // namespace
@@ -173,7 +197,7 @@ AppListViewDelegate::AppListViewDelegate(Profile* profile,
 
   // Set up the custom launcher pages.
   std::vector<GURL> custom_launcher_page_urls;
-  GetCustomLauncherPageUrls(&custom_launcher_page_urls);
+  GetCustomLauncherPageUrls(profile, &custom_launcher_page_urls);
   for (std::vector<GURL>::const_iterator it = custom_launcher_page_urls.begin();
        it != custom_launcher_page_urls.end();
        ++it) {