Move Pickle to base namespace.

ui/base/dragdrop/os_exchange_data_provider_aura.h

Index: ui/base/dragdrop/os_exchange_data_provider_aura.h
diff --git a/ui/base/dragdrop/os_exchange_data_provider_aura.h b/ui/base/dragdrop/os_exchange_data_provider_aura.h
index b489bcbd682b3a405435dc3a3dca99b7bef3aa8a..87f0b5a6b096d9a5684defdcc5550d32be3c3ac0 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_aura.h
+++ b/ui/base/dragdrop/os_exchange_data_provider_aura.h
@@ -34,7 +34,7 @@ class UI_BASE_EXPORT OSExchangeDataProviderAura
   void SetFilename(const base::FilePath& path) override;
   void SetFilenames(const std::vector<FileInfo>& filenames) override;
   void SetPickledData(const OSExchangeData::CustomFormat& format,
-                      const Pickle& data) override;
+                      const base::Pickle& data) override;
   bool GetString(base::string16* data) const override;
   bool GetURLAndTitle(OSExchangeData::FilenameToURLPolicy policy,
                       GURL* url,
@@ -42,7 +42,7 @@ class UI_BASE_EXPORT OSExchangeDataProviderAura
   bool GetFilename(base::FilePath* path) const override;
   bool GetFilenames(std::vector<FileInfo>* filenames) const override;
   bool GetPickledData(const OSExchangeData::CustomFormat& format,
-                      Pickle* data) const override;
+                      base::Pickle* data) const override;
   bool HasString() const override;
   bool HasURL(OSExchangeData::FilenameToURLPolicy policy) const override;
   bool HasFile() const override;
@@ -58,7 +58,7 @@ class UI_BASE_EXPORT OSExchangeDataProviderAura
   const gfx::Vector2d& GetDragImageOffset() const override;
 
  private:
-  typedef std::map<OSExchangeData::CustomFormat, Pickle>  PickleData;
+  typedef std::map<OSExchangeData::CustomFormat, base::Pickle> PickleData;
 
   // Returns true if |formats_| contains a string format and the string can be
   // parsed as a URL.