Remove resource_request_info_impl.h dependency from chrome. This also makes blob/file system urls w…

content/browser/resource_context_impl.cc

Index: content/browser/resource_context_impl.cc
===================================================================
--- content/browser/resource_context_impl.cc	(revision 128327)
+++ content/browser/resource_context_impl.cc	(working copy)
@@ -4,14 +4,27 @@
 
 #include "content/browser/resource_context_impl.h"
 
+#include "base/logging.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/fileapi/browser_file_system_helper.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
 #include "content/browser/host_zoom_map_impl.h"
 #include "content/browser/in_process_webkit/indexed_db_context_impl.h"
+#include "content/browser/net/view_blob_internals_job_factory.h"
+#include "content/browser/net/view_http_cache_job_factory.h"
+#include "content/browser/renderer_host/resource_request_info_impl.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/common/url_constants.h"
+#include "net/url_request/url_request.h"
+#include "net/url_request/url_request_context.h"
+#include "net/url_request/url_request_context_getter.h"
+#include "webkit/appcache/appcache_service.h"
+#include "webkit/appcache/view_appcache_internals_job.h"
+#include "webkit/blob/blob_data.h"
+#include "webkit/blob/blob_url_request_job_factory.h"
 #include "webkit/database/database_tracker.h"
+#include "webkit/fileapi/file_system_url_request_job_factory.h"
 
 // Key names on ResourceContext.
 static const char* kAppCacheServicKeyName = "content_appcache_service_tracker";
@@ -30,6 +43,8 @@
 
 namespace content {
 
+namespace {
+
 class NonOwningZoomData : public base::SupportsUserData::Data {
  public:
   explicit NonOwningZoomData(HostZoomMap* hzm) : host_zoom_map_(hzm) {}
@@ -39,19 +54,119 @@
   HostZoomMap* host_zoom_map_;
 };
 
+class BlobProtocolHandler : public webkit_blob::BlobProtocolHandler {
+ public:
+  BlobProtocolHandler(
+      webkit_blob::BlobStorageController* blob_storage_controller,
+      base::MessageLoopProxy* loop_proxy)
+      : webkit_blob::BlobProtocolHandler(blob_storage_controller,
+                                         loop_proxy) {}
+
+  virtual ~BlobProtocolHandler() {}
+
+ private:
+  virtual scoped_refptr<webkit_blob::BlobData>
+      LookupBlobData(net::URLRequest* request) const {
+    const ResourceRequestInfoImpl* info =
+        ResourceRequestInfoImpl::ForRequest(request);
+    if (!info)
+      return NULL;
+    return info->requested_blob_data();
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(BlobProtocolHandler);
+};
+
+// Adds a bunch of debugging urls. We use an interceptor instead of a protocol
+// handler because we want to reuse the chrome://scheme (everyone is familiar
+// with it, and no need to expose the content/chrome separation through our UI).
+class DeveloperProtocolHandler
+    : public net::URLRequestJobFactory::Interceptor {
+ public:
+  DeveloperProtocolHandler(
+      AppCacheService* appcache_service,
+      BlobStorageController* blob_storage_controller)
+      : appcache_service_(appcache_service),
+        blob_storage_controller_(blob_storage_controller) {}
+  virtual ~DeveloperProtocolHandler() {}
+
+  virtual net::URLRequestJob* MaybeIntercept(
+        net::URLRequest* request) const OVERRIDE {
+    // Check for chrome://view-http-cache/*, which uses its own job type.
+    if (ViewHttpCacheJobFactory::IsSupportedURL(request->url()))
+      return ViewHttpCacheJobFactory::CreateJobForRequest(request);
+
+    // Next check for chrome://appcache-internals/, which uses its own job type.
+    if (request->url().SchemeIs(chrome::kChromeUIScheme) &&
+        request->url().host() == chrome::kChromeUIAppCacheInternalsHost) {
+      return appcache::ViewAppCacheInternalsJobFactory::CreateJobForRequest(
+          request, appcache_service_);
+    }
+
+    // Next check for chrome://blob-internals/, which uses its own job type.
+    if (ViewBlobInternalsJobFactory::IsSupportedURL(request->url())) {
+      return ViewBlobInternalsJobFactory::CreateJobForRequest(
+          request, blob_storage_controller_);
+    }
+    return NULL;
+  }
+
+  virtual net::URLRequestJob* MaybeInterceptRedirect(
+        const GURL& location,
+        net::URLRequest* request) const OVERRIDE {
+    return NULL;
+  }
+
+  virtual net::URLRequestJob* MaybeInterceptResponse(
+      net::URLRequest* request) const OVERRIDE {
+    return NULL;
+  }
+
+ private:
+  AppCacheService* appcache_service_;
+  BlobStorageController* blob_storage_controller_;
+};
+
+void InitializeRequestContext(
+    ResourceContext* resource_context,
+    scoped_refptr<net::URLRequestContextGetter> context_getter) {
+  if (!context_getter)
+    return;  // tests.
+  net::URLRequestContext* context = context_getter->GetURLRequestContext();
+  net::URLRequestJobFactory* job_factory =
+      const_cast<net::URLRequestJobFactory*>(context->job_factory());
+  if (job_factory->IsHandledProtocol(chrome::kBlobScheme))
+    return;  // Already initialized this RequestContext.
+
+  bool set_protocol = job_factory->SetProtocolHandler(
+      chrome::kBlobScheme,
+      new BlobProtocolHandler(
+          GetBlobStorageControllerForResourceContext(resource_context),
+          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE)));
+  DCHECK(set_protocol);
+  set_protocol = job_factory->SetProtocolHandler(
+      chrome::kFileSystemScheme,
+      CreateFileSystemProtocolHandler(
+          GetFileSystemContextForResourceContext(resource_context),
+          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE)));
+  DCHECK(set_protocol);
+
+  job_factory->AddInterceptor(new DeveloperProtocolHandler(
+      ResourceContext::GetAppCacheService(resource_context),
+      GetBlobStorageControllerForResourceContext(resource_context)));
+
+  // TODO(jam): Add the ProtocolHandlerRegistryIntercepter here!
+}
+
+}  // namespace
+
 AppCacheService* ResourceContext::GetAppCacheService(ResourceContext* context) {
   return UserDataAdapter<ChromeAppCacheService>::Get(
       context, kAppCacheServicKeyName);
 }
 
-FileSystemContext* ResourceContext::GetFileSystemContext(
+BlobStorageController* GetBlobStorageControllerForResourceContext(
     ResourceContext* resource_context) {
-  return UserDataAdapter<FileSystemContext>::Get(
-      resource_context, kFileSystemContextKeyName);
-}
-
-BlobStorageController* ResourceContext::GetBlobStorageController(
-    ResourceContext* resource_context) {
   return GetChromeBlobStorageContextForResourceContext(resource_context)->
       controller();
 }
@@ -62,6 +177,12 @@
       resource_context, kDatabaseTrackerKeyName);
 }
 
+FileSystemContext* GetFileSystemContextForResourceContext(
+    ResourceContext* resource_context) {
+  return UserDataAdapter<FileSystemContext>::Get(
+      resource_context, kFileSystemContextKeyName);
+}
+
 IndexedDBContextImpl* GetIndexedDBContextForResourceContext(
     ResourceContext* resource_context) {
   return UserDataAdapter<IndexedDBContextImpl>::Get(
@@ -112,6 +233,22 @@
       kHostZoomMapKeyName,
       new NonOwningZoomData(
           HostZoomMap::GetForBrowserContext(browser_context)));
+
+  // Add content's URLRequestContext's hooks.
+  // Check first to avoid memory leak in unittests.
+  if (BrowserThread::IsMessageLoopValid(BrowserThread::IO)) {
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&InitializeRequestContext,
+                   resource_context,
+                   make_scoped_refptr(browser_context->GetRequestContext())));
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&InitializeRequestContext,
+                   resource_context,
+                   make_scoped_refptr(
+                       browser_context->GetRequestContextForMedia())));
+  }
 }
 
 }  // namespace content