Change most uses of Pickle to base::Pickle

ui/base/dragdrop/os_exchange_data_provider_aura.cc

Index: ui/base/dragdrop/os_exchange_data_provider_aura.cc
diff --git a/ui/base/dragdrop/os_exchange_data_provider_aura.cc b/ui/base/dragdrop/os_exchange_data_provider_aura.cc
index 0d4fb90d22c66e2907160dfdd1cbaef964453a58..d633ccc51a2766d7675869936191e3a29ab8e49a 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_aura.cc
+++ b/ui/base/dragdrop/os_exchange_data_provider_aura.cc
@@ -74,7 +74,7 @@ void OSExchangeDataProviderAura::SetFilenames(
 
 void OSExchangeDataProviderAura::SetPickledData(
     const OSExchangeData::CustomFormat& format,
-    const Pickle& data) {
+    const base::Pickle& data) {
   pickle_data_[format] = data;
   formats_ |= OSExchangeData::PICKLED_DATA;
 }
@@ -122,7 +122,7 @@ bool OSExchangeDataProviderAura::GetFilenames(
 
 bool OSExchangeDataProviderAura::GetPickledData(
     const OSExchangeData::CustomFormat& format,
-    Pickle* data) const {
+    base::Pickle* data) const {
   PickleData::const_iterator i = pickle_data_.find(format);
   if (i == pickle_data_.end())
     return false;