android: add ThumbnailCache

chrome/browser/android/tab_thumbnail_provider.h

Index: chrome/browser/android/tab_thumbnail_provider.h
diff --git a/chrome/browser/android/tab_thumbnail_provider.h b/chrome/browser/android/tab_thumbnail_provider.h
new file mode 100644
index 0000000000000000000000000000000000000000..a3c2b8b55775a3af337c33ce2bc2d4b0b8c6cd7c
--- /dev/null
+++ b/chrome/browser/android/tab_thumbnail_provider.h
@@ -0,0 +1,21 @@
+// Copyright 2014 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 CHROME_BROWSER_ANDROID_TAB_THUMBNAIL_PROVIDER_H_
+#define CHROME_BROWSER_ANDROID_TAB_THUMBNAIL_PROVIDER_H_
+
+class GURL;
+
+namespace content {
+class ContentViewCore;
+}
+
+class TabThumbnailProvider {

[David Trainor- moved to gerrit, 2014/06/17 08:12:10]

We might not need this interface at this point... especially if we're looking at
cleaning this up more in the immediate future.

[powei, 2014/06/19 23:05:58]

Done. Removed in the next ps.

+ public:
+  virtual int GetAndroidId() const = 0;
+  virtual content::ContentViewCore* GetContentViewCore() const = 0;
+  virtual GURL GetURL() const = 0;
+};
+
+#endif  // CHROME_BROWSER_ANDROID_TAB_THUMBNAIL_PROVIDER_H_