Change most uses of Pickle to base::Pickle

ui/base/dragdrop/os_exchange_data.cc

Index: ui/base/dragdrop/os_exchange_data.cc
diff --git a/ui/base/dragdrop/os_exchange_data.cc b/ui/base/dragdrop/os_exchange_data.cc
index c236a46730549b08c9e62793b5754df0b970a4bd..69d13edd4a28c31d8717d41bd219699387544296 100644
--- a/ui/base/dragdrop/os_exchange_data.cc
+++ b/ui/base/dragdrop/os_exchange_data.cc
@@ -53,7 +53,7 @@ void OSExchangeData::SetFilenames(
 }
 
 void OSExchangeData::SetPickledData(const CustomFormat& format,
-                                    const Pickle& data) {
+                                    const base::Pickle& data) {
   provider_->SetPickledData(format, data);
 }
 
@@ -77,7 +77,7 @@ bool OSExchangeData::GetFilenames(
 }
 
 bool OSExchangeData::GetPickledData(const CustomFormat& format,
-                                    Pickle* data) const {
+                                    base::Pickle* data) const {
   return provider_->GetPickledData(format, data);
 }