Revert of media: Simplify CdmHostFile(s)

content/browser/zygote_host/zygote_communication_linux.cc

Index: content/browser/zygote_host/zygote_communication_linux.cc
diff --git a/content/browser/zygote_host/zygote_communication_linux.cc b/content/browser/zygote_host/zygote_communication_linux.cc
index 03780e7f31b61f7101dd43ac5aec06d6d5d6471c..76548d221d4493d3e85f479798b00a440865896d 100644
--- a/content/browser/zygote_host/zygote_communication_linux.cc
+++ b/content/browser/zygote_host/zygote_communication_linux.cc
@@ -22,6 +22,7 @@
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
+#include "media/base/media_switches.h"
 #include "ui/display/display_switches.h"
 #include "ui/gfx/switches.h"
 
@@ -260,6 +261,8 @@
       switches::kForceDeviceScaleFactor, switches::kLoggingLevel,
       switches::kNoSandbox, switches::kPpapiInProcess,
       switches::kRegisterPepperPlugins, switches::kV, switches::kVModule,
+      // Need to tell CdmHostFile(s) to ignore missing CDM host files.
+      switches::kIgnoreMissingCdmHostFile,
   };
   cmd_line.CopySwitchesFrom(browser_command_line, kForwardSwitches,
                             arraysize(kForwardSwitches));