Add SetImageData api to chrome.clipboard.

chrome/browser/extensions/clipboard_extension_apitest_chromeos.cc

Index: chrome/browser/extensions/clipboard_extension_apitest_chromeos.cc
diff --git a/chrome/browser/extensions/clipboard_extension_apitest_chromeos.cc b/chrome/browser/extensions/clipboard_extension_apitest_chromeos.cc
index 37fa8118e31b2bab20f0d8ca8c09f6f08a612aaa..cac85c95edb899867687a47fc5fd505bf1d0cc31 100644
--- a/chrome/browser/extensions/clipboard_extension_apitest_chromeos.cc
+++ b/chrome/browser/extensions/clipboard_extension_apitest_chromeos.cc
@@ -17,3 +17,12 @@ IN_PROC_BROWSER_TEST_F(ClipboardExtensionApiTest, ClipboardDataChanged) {
       << message_;
   ASSERT_TRUE(result_listener.WaitUntilSatisfied());
 }
+
+IN_PROC_BROWSER_TEST_F(ClipboardExtensionApiTest, SetImageData) {
+  ASSERT_TRUE(StartEmbeddedTestServer());
+  ExtensionTestMessageListener clipboard_change_listener(
+      "clipboard data changed 2", false);
+  ASSERT_TRUE(RunPlatformAppTest("clipboard/set_image_data"))
+      << message_;
+  ASSERT_TRUE(clipboard_change_listener.WaitUntilSatisfied());
+}