Move app_installer into chromium.

build/all.gyp

Index: build/all.gyp
diff --git a/build/all.gyp b/build/all.gyp
index d112407796dccac4aa83f50fe3b29b7ab078f701..dce912502d477940a086b8f4e598baa5e24d85a1 100644
--- a/build/all.gyp
+++ b/build/all.gyp
@@ -178,6 +178,7 @@
             }],
           ],
           'dependencies': [
+            '../app_installer/app_installer.gyp:*',
             '../chrome_elf/chrome_elf.gyp:*',
             '../cloud_print/cloud_print.gyp:*',
             '../courgette/courgette.gyp:*',
@@ -314,6 +315,7 @@
         }],
         ['OS=="win"', {
           'dependencies': [
+            '../app_installer/app_installer.gyp:app_installer',
             '../chrome/chrome.gyp:crash_service',
             '../chrome/chrome.gyp:installer_util_unittests',
             # ../chrome/test/mini_installer requires mini_installer.
@@ -1141,6 +1143,7 @@
               'target_name': 'chrome_official_builder',
               'type': 'none',
               'dependencies': [
+                '../app_installer/app_installer.gyp:app_installer',
                 '../base/base.gyp:base_unittests',
                 '../chrome/chrome.gyp:browser_tests',
                 '../chrome/chrome.gyp:crash_service',