Upstream the clipboard implementation for Android

ui/base/clipboard/clipboard.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_BASE_CLIPBOARD_CLIPBOARD_H_
 #define UI_BASE_CLIPBOARD_CLIPBOARD_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "base/string16.h"
 #include "ui/base/ui_export.h"
 
 #if defined(TOOLKIT_USES_GTK)
 #include <gdk/gdk.h>
 #endif
 
+#if defined(OS_ANDROID)
+#include "base/synchronization/lock.h"
+#include <jni.h>
+#endif
+
 namespace gfx {
 class Size;
 }
 
 class FilePath;
 class SkBitmap;
 
 #if defined(TOOLKIT_USES_GTK)
 typedef struct _GtkClipboard GtkClipboard;
 #endif
@@ skipping 30 matching lines @@
     FormatType(const FormatType& other);
     FormatType& operator=(const FormatType& other);
    private:
     explicit FormatType(NSString* native_format);
     NSString* ToNSString() const { return data_; }
     NSString* data_;
 #elif defined(USE_AURA)
     explicit FormatType(const std::string& native_format);
     const std::string& ToString() const { return data_; }
     std::string data_;
+#if defined(OS_ANDROID)
+    int compare(const std::string& str) const { return data_.compare(str); }

[dcheng, 2012/01/19 18:10:17]

I think your cleanup ate a few lines.

[John Grabowski, 2012/01/19 20:32:56]

Verified this doesn't compile; we only hit this conditional when USE_AURA is
defined, which isn't true on OS_ANDROID.

[Peter Beverloo, 2012/01/20 15:13:51]

Good catch. I actually meant to add OS_ANDROID to the conditional on l74 as
well, as the interface (except for the compare() method) is shared.

[Peter Beverloo, 2012/01/20 15:13:51]

As noted, cleanup fail on my side. PS4 compiles and works well (will request
trybots as well).

+#endif
 #elif defined(TOOLKIT_USES_GTK)
     explicit FormatType(const std::string& native_format);
     explicit FormatType(const GdkAtom& native_format);
     const GdkAtom& ToGdkAtom() const { return data_; }
     GdkAtom data_;
 #else
 #error No FormatType definition.
 #endif
   };
 
@@ skipping 75 matching lines @@
   ~Clipboard();
 
   // Write a bunch of objects to the system clipboard. Copies are made of the
   // contents of |objects|. On Windows they are copied to the system clipboard.
   // On linux they are copied into a structure owned by the Clipboard object and
   // kept until the system clipboard is set again.
   void WriteObjects(const ObjectMap& objects);
 
   // On Linux/BSD, we need to know when the clipboard is set to a URL.  Most
   // platforms don't care.
-#if defined(OS_WIN) || defined(OS_MACOSX) || defined(USE_AURA)
+#if defined(OS_WIN) || defined(OS_MACOSX) || defined(USE_AURA) \
+    || defined(OS_ANDROID)
   void DidWriteURL(const std::string& utf8_text) {}
 #else  // !defined(OS_WIN) && !defined(OS_MACOSX)
   void DidWriteURL(const std::string& utf8_text);
 #endif
 
   // Returns a sequence number which uniquely identifies clipboard state.
   // This can be used to version the data on the clipboard and determine
   // whether it has changed.
   uint64 GetSequenceNumber(Buffer buffer);
 
@@ skipping 136 matching lines @@
   // Insert a mapping into clipboard_data_.
   void InsertMapping(const char* key, char* data, size_t data_len);
 
   // Find the gtk clipboard for the passed buffer enum.
   GtkClipboard* LookupBackingClipboard(Buffer clipboard) const;
 
   TargetMap* clipboard_data_;
   GtkClipboard* clipboard_;
   GtkClipboard* primary_selection_;
 #endif
+#if defined(OS_ANDROID)
+  FRIEND_TEST_ALL_PREFIXES(ClipboardTest, InternalClipboardInvalidation);
+
+  // Java class and methods for the Android ClipboardManager
+  jobject clipboard_manager_;
+  jmethodID set_text_;
+  jmethodID has_text_;
+  jmethodID get_text_;
+  jmethodID to_string_;
+
+  // Returns whether some text is available from the Android Clipboard
+  bool IsTextAvailableFromAndroid() const;
+
+  // Make sure that the Android Clipboard contents matches what we think it
+  // should contain. If it changed, a copy occured from another application and
+  // all internal data is dropped.
+  void ValidateInternalClipboard() const;
+
+  // Clear the Clipboard for all types. Both for Android and internal
+  void Clear();
+
+  // Clear the internal clipboard
+  void ClearInternalClipboard() const;
+
+  // This private method is used to set non text key/value
+  void Set(const std::string& key, const std::string& value);
+#endif
 
   // MIME type constants.
   static const char kMimeTypeText[];
   static const char kMimeTypeHTML[];
   static const char kMimeTypePNG[];
 
   DISALLOW_COPY_AND_ASSIGN(Clipboard);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_CLIPBOARD_CLIPBOARD_H_