Change the flag which enables OOP PDF to an enable/disable flag

chrome/common/chrome_switches.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 281 matching lines @@
 // Disable auto-reload of error pages if offline.
 const char kDisableOfflineAutoReload[]       = "disable-offline-auto-reload";
 
 // Disable only auto-reloading error pages when the tab is visible.
 const char kDisableOfflineAutoReloadVisibleOnly[] =
     "disable-offline-auto-reload-visible-only";
 
 // Disable the origin chip.
 const char kDisableOriginChip[]             = "disable-origin-chip";
 
+// Disable the out of process PDF plugin.
+const char kDisableOutOfProcessPdf[]        = "disable-out-of-process-pdf";
+
 // Disable the setting to prompt the user for their OS account password before
 // revealing plaintext passwords in the password manager.
 const char kDisablePasswordManagerReauthentication[] =
     "disable-password-manager-reauthentication";
 
 // Enables searching for people from the apps list search box.
 const char kDisablePeopleSearch[]           = "disable-people-search";
 
 // Don't use bubbles for content permissions requests instead of infobars.
 const char kDisablePermissionsBubbles[]      = "disable-permissions-bubbles";
@@ skipping 198 matching lines @@
 // enabled.
 //
 // We're using independent flags here (as opposed to a common flag with
 // different values) to be able to enable/disable the entire experience
 // associated with this feature server-side from the FieldTrial (the complete
 // experience includes other flag changes as well). It is not currently possible
 // to do that with "flag=value" flags.
 const char kEnableOriginChipAlways[]        = "enable-origin-chip-always";
 const char kEnableOriginChipOnSrp[]         = "enable-origin-chip-on-srp";
 
+// Enable the out of process PDF plugin.
+const char kEnableOutOfProcessPdf[]         = "enable-out-of-process-pdf";
+
 // Enables panels (always on-top docked pop-up windows).
 const char kEnablePanels[]                  = "enable-panels";
 
 // Enables presenting plugin placeholder content as shadow DOM.
 const char kEnablePluginPlaceholderShadowDom[] =
     "enable-plugin-placeholder-shadow-dom";
 
 // Enables the Power overlay in Settings.
 const char kEnablePowerOverlay[]            = "enable-power-overlay";
 
@@ skipping 347 matching lines @@
 // Launches URL in new browser window.
 const char kOpenInNewWindow[]               = "new-window";
 
 // Force use of QUIC for requests to the specified origin.
 const char kOriginToForceQuicOn[]           = "origin-to-force-quic-on";
 
 // The time that a new chrome process which is delegating to an already running
 // chrome process started. (See ProcessSingleton for more details.)
 const char kOriginalProcessStartTime[]      = "original-process-start-time";
 
-// Enable the out of process PDF plugin.
-const char kOutOfProcessPdf[] = "out-of-process-pdf";
-
 // Packages an extension to a .crx installable file from a given directory.
 const char kPackExtension[]                 = "pack-extension";
 
 // Optional PEM private key to use in signing packaged .crx.
 const char kPackExtensionKey[]              = "pack-extension-key";
 
 // Specifies the path to the user data folder for the parent profile.
 const char kParentProfile[]                 = "parent-profile";
 
 // Development flag for permission request API. This flag is needed until
@@ skipping 459 matching lines @@
 // Enables overriding the path of file manager extension.
 const char kFileManagerExtensionPath[]      = "filemgr-ext-path";
 #endif
 
 bool AboutInSettingsEnabled() {
   return SettingsWindowEnabled() &&
       !CommandLine::ForCurrentProcess()->HasSwitch(
           ::switches::kDisableAboutInSettings);
 }
 
+bool OutOfProcessPdfEnabled() {
+  if (CommandLine::ForCurrentProcess()->HasSwitch(kEnableOutOfProcessPdf))
+    return true;
+
+  if (CommandLine::ForCurrentProcess()->HasSwitch(kDisableOutOfProcessPdf))
+    return false;
+
+  // Default.
+  return false;
+}
+
 bool SettingsWindowEnabled() {
 #if defined(OS_CHROMEOS)
   return !CommandLine::ForCurrentProcess()->HasSwitch(
       ::switches::kDisableSettingsWindow);
 #else
   return CommandLine::ForCurrentProcess()->HasSwitch(
       ::switches::kEnableSettingsWindow);
 #endif
 }
 
 #if defined(OS_CHROMEOS)
 bool PowerOverlayEnabled() {
   return CommandLine::ForCurrentProcess()->HasSwitch(
       ::switches::kEnablePowerOverlay);
 }
 #endif
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches