Allow chromedriver to install an extension and get all installed extension IDs.

chrome/test/webdriver/commands/chrome_commands.h

Index: chrome/test/webdriver/commands/chrome_commands.h
diff --git a/chrome/test/webdriver/commands/chrome_commands.h b/chrome/test/webdriver/commands/chrome_commands.h
index 22f90b29f684460e1ec003f2e473978322646272..d99749d5517f7642bccc91349e4ebd9257fd0f69 100644
--- a/chrome/test/webdriver/commands/chrome_commands.h
+++ b/chrome/test/webdriver/commands/chrome_commands.h
@@ -35,6 +35,22 @@ class ExtensionsCommand : public WebDriverCommand {
   DISALLOW_COPY_AND_ASSIGN(ExtensionsCommand);
 };
 
+class ViewsCommand : public WebDriverCommand {
+ public:
+  ViewsCommand(const std::vector<std::string>& path_segments,
+               const base::DictionaryValue* const parameters);
+  virtual ~ViewsCommand();
+  
+  virtual bool DoesGet() OVERRIDE;
+  virtual bool DoesPost() OVERRIDE;
+
+  virtual void ExecuteGet(Response* const response) OVERRIDE;
+  virtual void ExecutePost(Response* const response) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ViewsCommand);
+};
+
 }  // namespace webdriver
 
 #endif  // CHROME_TEST_WEBDRIVER_COMMANDS_CHROME_COMMANDS_H_