Remove CDM_7 support

media/cdm/cdm_adapter.cc

 // Copyright 2015 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 "media/cdm/cdm_adapter.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 289 matching lines @@
   // Always update this DCHECK when updating this function.
   // If this check fails, update this function and DCHECK or update
   // IsSupportedCdmHostVersion.
 
   DCHECK(
       // Future version is not supported.
       !IsSupportedCdmHostVersion(cdm::Host_8::kVersion + 1) &&
       // Current version is supported.
       IsSupportedCdmHostVersion(cdm::Host_8::kVersion) &&
       // Include all previous supported versions (if any) here.
-      IsSupportedCdmHostVersion(cdm::Host_7::kVersion) &&
       // One older than the oldest supported version is not supported.
-      !IsSupportedCdmHostVersion(cdm::Host_7::kVersion - 1));
+      !IsSupportedCdmHostVersion(cdm::Host_8::kVersion - 1));
   DCHECK(IsSupportedCdmHostVersion(host_interface_version));
 
   CdmAdapter* cdm_adapter = static_cast<CdmAdapter*>(user_data);
   DVLOG(1) << "Create CDM Host with version " << host_interface_version;
   switch (host_interface_version) {
     case cdm::Host_8::kVersion:
       return static_cast<cdm::Host_8*>(cdm_adapter);
-    case cdm::Host_7::kVersion:
-      return static_cast<cdm::Host_7*>(cdm_adapter);
     default:
       NOTREACHED() << "Unexpected host interface version "
                    << host_interface_version;
       return nullptr;
   }
 }
 
 }  // namespace
 
 // static
@@ skipping 610 matching lines @@
     result_frames->push_back(frame);
 
     data += frame_size;
     bytes_left -= frame_size;
   } while (bytes_left > 0);
 
   return true;
 }
 
 }  // namespace media