Move most of ChromeV8Context to a base ScriptContext

extensions/renderer/script_context.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 CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_
-#define CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_
+#ifndef EXTENSIONS_RENDERER_SCRIPT_CONTEXT_H_
+#define EXTENSIONS_RENDERER_SCRIPT_CONTEXT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "chrome/renderer/extensions/module_system.h"
-#include "chrome/renderer/extensions/pepper_request_proxy.h"
-#include "chrome/renderer/extensions/request_sender.h"
-#include "chrome/renderer/extensions/safe_builtins.h"
 #include "extensions/common/features/feature.h"
+#include "extensions/renderer/module_system.h"
+#include "extensions/renderer/request_sender.h"
+#include "extensions/renderer/safe_builtins.h"
 #include "extensions/renderer/scoped_persistent.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 class WebFrame;
 }
 
 namespace content {
 class RenderView;
 }
 
 namespace extensions {
 class Extension;
 
-// Chrome's wrapper for a v8 context.
-class ChromeV8Context : public RequestSender::Source {
+// Extensions wrapper for a v8 context.
+class ScriptContext : public RequestSender::Source {
  public:
-  ChromeV8Context(v8::Handle<v8::Context> context,
-                  blink::WebFrame* frame,
-                  const Extension* extension,
-                  Feature::Context context_type);
-  virtual ~ChromeV8Context();
+  ScriptContext(v8::Handle<v8::Context> context,
+                blink::WebFrame* frame,
+                const Extension* extension,
+                Feature::Context context_type);
+  virtual ~ScriptContext();
 
   // Clears the WebFrame for this contexts and invalidates the associated
   // ModuleSystem.
   void Invalidate();
 
   // Returns true if this context is still valid, false if it isn't.
   // A context becomes invalid via Invalidate().
-  bool is_valid() const {
-    return !v8_context_.IsEmpty();
-  }
+  bool is_valid() const { return !v8_context_.IsEmpty(); }
 
   v8::Handle<v8::Context> v8_context() const {
     return v8_context_.NewHandle(v8::Isolate::GetCurrent());
   }
 
-  const Extension* extension() const {
-    return extension_.get();
-  }
+  const Extension* extension() const { return extension_.get(); }
 
-  blink::WebFrame* web_frame() const {
-    return web_frame_;
-  }
+  blink::WebFrame* web_frame() const { return web_frame_; }
 
-  Feature::Context context_type() const {
-    return context_type_;
-  }
+  Feature::Context context_type() const { return context_type_; }
 
   void set_module_system(scoped_ptr<ModuleSystem> module_system) {
     module_system_ = module_system.Pass();
   }
 
   ModuleSystem* module_system() { return module_system_.get(); }
 
-  SafeBuiltins* safe_builtins() {
-    return &safe_builtins_;
-  }
-  const SafeBuiltins* safe_builtins() const {
-    return &safe_builtins_;
-  }
+  SafeBuiltins* safe_builtins() { return &safe_builtins_; }
 
-  PepperRequestProxy* pepper_request_proxy() {
-    return &pepper_request_proxy_;
-  }
+  const SafeBuiltins* safe_builtins() const { return &safe_builtins_; }
 
   // Returns the ID of the extension associated with this context, or empty
   // string if there is no such extension.
   std::string GetExtensionID() const;
 
   // Returns the RenderView associated with this context. Can return NULL if the
   // context is in the process of being destroyed.
   content::RenderView* GetRenderView() const;
 
-  // Get the URL of this context's web frame.
-  GURL GetURL() const;
-
   // Runs |function| with appropriate scopes. Doesn't catch exceptions, callers
   // must do that if they want.
   //
   // USE THIS METHOD RATHER THAN v8::Function::Call WHEREVER POSSIBLE.
   v8::Local<v8::Value> CallFunction(v8::Handle<v8::Function> function,
                                     int argc,
                                     v8::Handle<v8::Value> argv[]) const;
 
   void DispatchEvent(const char* event_name, v8::Handle<v8::Array> args) const;
 
   // Fires the onunload event on the unload_event module.
   void DispatchOnUnloadEvent();
 
   // Returns the availability of the API |api_name|.
   Feature::Availability GetAvailability(const std::string& api_name);
 
+  // Returns a string description of the type of context this is.
+  std::string GetContextTypeDescription();
+
+  v8::Isolate* isolate() const { return isolate_; }
+
+  // Get the URL of this context's web frame.
+  GURL GetURL() const;
+
   // Returns whether the API |api| or any part of the API could be
   // available in this context without taking into account the context's
   // extension.
   bool IsAnyFeatureAvailableToContext(const extensions::Feature& api);
 
-  // Returns a string description of the type of context this is.
-  std::string GetContextTypeDescription();
+  // Utility to get the URL we will match against for a frame. If the frame has
+  // committed, this is the commited URL. Otherwise it is the provisional URL.
+  static GURL GetDataSourceURLForFrame(const blink::WebFrame* frame);
 
   // RequestSender::Source implementation.
-  virtual ChromeV8Context* GetContext() OVERRIDE;
+  virtual ScriptContext* GetContext() OVERRIDE;
   virtual void OnResponseReceived(const std::string& name,
                                   int request_id,
                                   bool success,
                                   const base::ListValue& response,
                                   const std::string& error) OVERRIDE;
 
-  v8::Isolate* isolate() const {
-    return isolate_;
-  }
-
- private:
+ protected:
   // The v8 context the bindings are accessible to.
   ScopedPersistent<v8::Context> v8_context_;
 
+ private:
   // The WebFrame associated with this context. This can be NULL because this
   // object can outlive is destroyed asynchronously.
   blink::WebFrame* web_frame_;
 
   // The extension associated with this context, or NULL if there is none. This
   // might be a hosted app in the case that this context is hosting a web URL.
   scoped_refptr<const Extension> extension_;
 
   // The type of context.
   Feature::Context context_type_;
 
   // Owns and structures the JS that is injected to set up extension bindings.
   scoped_ptr<ModuleSystem> module_system_;
 
   // Contains safe copies of builtin objects like Function.prototype.
   SafeBuiltins safe_builtins_;
 
-  // The proxy for this context for making API calls from Pepper via Javascript.
-  PepperRequestProxy pepper_request_proxy_;
-
   v8::Isolate* isolate_;
 
-  DISALLOW_COPY_AND_ASSIGN(ChromeV8Context);
+  DISALLOW_COPY_AND_ASSIGN(ScriptContext);
 };
 
 }  // namespace extensions
 
-#endif  // CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_
+#endif  // EXTENSIONS_RENDERER_SCRIPT_CONTEXT_H_