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 866 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";
+// Enable or disable the out of process PDF plugin.

[Lei Zhang, 2014/11/25 22:22:30]

Can you keep these in alphabetical order?

[raymes, 2014/11/25 22:36:56]

Done.

+const char kEnableOutOfProcessPdf[]         = "enable-out-of-process-pdf";
+const char kDisableOutOfProcessPdf[]        = "disable-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";
 
@@ skipping 460 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