Add SetImageData api to chrome.clipboard.

chrome/browser/extensions/chrome_extensions_browser_client.h

Index: chrome/browser/extensions/chrome_extensions_browser_client.h
diff --git a/chrome/browser/extensions/chrome_extensions_browser_client.h b/chrome/browser/extensions/chrome_extensions_browser_client.h
index 2a0e084f0e98bf03b0542201eba72ca14c75a0c6..4a4a318df6391596613defacd9fe98d98fbd2965 100644
--- a/chrome/browser/extensions/chrome_extensions_browser_client.h
+++ b/chrome/browser/extensions/chrome_extensions_browser_client.h
@@ -31,6 +31,7 @@ class ChromeComponentExtensionResourceManager;
 class ChromeExtensionsAPIClient;
 class ChromeProcessManagerDelegate;
 class ContentSettingsPrefsObserver;
+class ClipboardExtensionHelper;
 
 // Implementation of BrowserClient for Chrome, which includes
 // knowledge of Profiles, BrowserContexts and incognito.
@@ -106,6 +107,10 @@ class ChromeExtensionsBrowserClient : public ExtensionsBrowserClient {
   bool IsMinBrowserVersionSupported(const std::string& min_version) override;
   ExtensionWebContentsObserver* GetExtensionWebContentsObserver(
       content::WebContents* web_contents) override;
+  void SaveImageDataToClipboard(const std::vector<char>& image_data,
+                                clipboard::ImageType type,
+                                const base::Closure& success_callback,
+                                const base::Closure& error_callback) override;
   void ReportError(content::BrowserContext* context,
                    std::unique_ptr<ExtensionError> error) override;
   void CleanUpWebView(content::BrowserContext* browser_context,
@@ -139,6 +144,8 @@ class ChromeExtensionsBrowserClient : public ExtensionsBrowserClient {
 
   std::unique_ptr<ExtensionCache> extension_cache_;
 
+  std::unique_ptr<ClipboardExtensionHelper> clipboard_extension_helper_;
+
   std::unique_ptr<KioskDelegate> kiosk_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsBrowserClient);