Switch CdmWrapper to use uint32_t for size types per style guide.

media/cdm/ppapi/cdm_wrapper.h

Index: media/cdm/ppapi/cdm_wrapper.h
diff --git a/media/cdm/ppapi/cdm_wrapper.h b/media/cdm/ppapi/cdm_wrapper.h
index 370eecc6075929fc150b3f0a10cb44b84e3b7db1..f54d0d650b684d2dfc303fde035372e8218df4c2 100644
--- a/media/cdm/ppapi/cdm_wrapper.h
+++ b/media/cdm/ppapi/cdm_wrapper.h
@@ -31,24 +31,24 @@ namespace media {
 class CdmWrapper {
  public:
   static CdmWrapper* Create(const char* key_system,
-                            int key_system_size,
+                            uint32_t key_system_size,
                             GetCdmHostFunc get_cdm_host_func,
                             void* user_data);
 
   virtual ~CdmWrapper() {};
 
   virtual cdm::Status GenerateKeyRequest(const char* type,
-                                         int type_size,
+                                         uint32_t type_size,
                                          const uint8_t* init_data,
-                                         int init_data_size) = 0;
+                                         uint32_t init_data_size) = 0;
   virtual cdm::Status AddKey(const char* session_id,
-                             int session_id_size,
+                             uint32_t session_id_size,
                              const uint8_t* key,
-                             int key_size,
+                             uint32_t key_size,
                              const uint8_t* key_id,
-                             int key_id_size) = 0;
+                             uint32_t key_id_size) = 0;
   virtual cdm::Status CancelKeyRequest(const char* session_id,
-                                       int session_id_size) = 0;
+                                       uint32_t session_id_size) = 0;
   virtual void TimerExpired(void* context) = 0;
   virtual cdm::Status Decrypt(const cdm::InputBuffer& encrypted_buffer,
                               cdm::DecryptedBlock* decrypted_buffer) = 0;
@@ -84,7 +84,7 @@ template <class CdmInterface>
 class CdmWrapperImpl : public CdmWrapper {
  public:
   static CdmWrapper* Create(const char* key_system,
-                            int key_system_size,
+                            uint32_t key_system_size,
                             GetCdmHostFunc get_cdm_host_func,
                             void* user_data) {
     void* cdm_instance = ::CreateCdmInstance(
@@ -102,24 +102,24 @@ class CdmWrapperImpl : public CdmWrapper {
   }
 
   virtual cdm::Status GenerateKeyRequest(const char* type,
-                                         int type_size,
+                                         uint32_t type_size,
                                          const uint8_t* init_data,
-                                         int init_data_size) OVERRIDE {
+                                         uint32_t init_data_size) OVERRIDE {
     return cdm_->GenerateKeyRequest(type, type_size, init_data, init_data_size);
   }
 
   virtual cdm::Status AddKey(const char* session_id,
-                             int session_id_size,
+                             uint32_t session_id_size,
                              const uint8_t* key,
-                             int key_size,
+                             uint32_t key_size,
                              const uint8_t* key_id,
-                             int key_id_size) OVERRIDE {
+                             uint32_t key_id_size) OVERRIDE {
     return cdm_->AddKey(
         session_id, session_id_size, key, key_size, key_id, key_id_size);
   }
 
   virtual cdm::Status CancelKeyRequest(const char* session_id,
-                                       int session_id_size) OVERRIDE {
+                                       uint32_t session_id_size) OVERRIDE {
     return cdm_->CancelKeyRequest(session_id, session_id_size);
   }
 
@@ -212,7 +212,7 @@ template <> cdm::Status CdmWrapperImpl<cdm::ContentDecryptionModule_1>::
 }
 
 CdmWrapper* CdmWrapper::Create(const char* key_system,
-                               int key_system_size,
+                               uint32_t key_system_size,
                                GetCdmHostFunc get_cdm_host_func,
                                void* user_data) {
   // Try to create the CDM using the latest CDM interface version.