Introduce the ENABLE_BROWSER_CDMS macro.

content/renderer/media/cdm_session_adapter.cc

Index: content/renderer/media/cdm_session_adapter.cc
diff --git a/content/renderer/media/cdm_session_adapter.cc b/content/renderer/media/cdm_session_adapter.cc
index 71e347936d16c154222e20519bc3b4b256b1e0af..33c120ef3bd3d1bcdf41ef275c9fc3739cfd8592 100644
--- a/content/renderer/media/cdm_session_adapter.cc
+++ b/content/renderer/media/cdm_session_adapter.cc
@@ -20,7 +20,7 @@ COMPILE_ASSERT(kStartingSessionId > media::MediaKeys::kInvalidSessionId,
                invalid_starting_value);
 
 CdmSessionAdapter::CdmSessionAdapter() :
-#if defined(OS_ANDROID)
+#if defined(ENABLE_BROWSER_CDMS)
     cdm_id_(0),
 #endif
     weak_ptr_factory_(this) {}
@@ -30,7 +30,7 @@ CdmSessionAdapter::~CdmSessionAdapter() {}
 bool CdmSessionAdapter::Initialize(
 #if defined(ENABLE_PEPPER_CDMS)
     const CreatePepperCdmCB& create_pepper_cdm_cb,
-#elif defined(OS_ANDROID)
+#elif defined(ENABLE_BROWSER_CDMS)
     RendererCdmManager* manager,
 #endif  // defined(ENABLE_PEPPER_CDMS)
     const std::string& key_system,
@@ -41,7 +41,7 @@ bool CdmSessionAdapter::Initialize(
       security_origin,
 #if defined(ENABLE_PEPPER_CDMS)
       create_pepper_cdm_cb,
-#elif defined(OS_ANDROID)
+#elif defined(ENABLE_BROWSER_CDMS)
       manager,
       &cdm_id_,
 #endif  // defined(ENABLE_PEPPER_CDMS)
@@ -96,11 +96,11 @@ media::Decryptor* CdmSessionAdapter::GetDecryptor() {
   return media_keys_->GetDecryptor();
 }
 
-#if defined(OS_ANDROID)
+#if defined(ENABLE_BROWSER_CDMS)
 int CdmSessionAdapter::GetCdmId() const {
   return cdm_id_;
 }
-#endif  // defined(OS_ANDROID)
+#endif  // defined(ENABLE_BROWSER_CDMS)
 
 void CdmSessionAdapter::OnSessionCreated(uint32 session_id,
                                          const std::string& web_session_id) {