Revert "Revert 254514 "Revert 254507 "Reland "Move WebKitPlatformSupport...""

content/child/blink_platform_impl.h

-// Copyright 2014 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 CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
-#define CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
-
-#include "base/compiler_specific.h"
-#include "base/debug/trace_event.h"
-#include "base/platform_file.h"
-#include "base/timer/timer.h"
-#include "content/common/content_export.h"
-#include "third_party/WebKit/public/platform/Platform.h"
-#include "third_party/WebKit/public/platform/WebURLError.h"
-#include "ui/base/layout.h"
-#include "webkit/child/resource_loader_bridge.h"
-
-namespace base {
-class MessageLoop;
-}
-
-namespace blink {
-class WebSocketStreamHandle;
-}
-
-namespace content {
-
-class WebSocketStreamHandleDelegate;
-class WebSocketStreamHandleBridge;
-
-class CONTENT_EXPORT BlinkPlatformImpl
-    : NON_EXPORTED_BASE(public blink::Platform) {
- public:
-  BlinkPlatformImpl();
-  virtual ~BlinkPlatformImpl();
-
-  // Platform methods (partial implementation):
-  virtual base::PlatformFile databaseOpenFile(
-      const blink::WebString& vfs_file_name, int desired_flags);
-  virtual int databaseDeleteFile(const blink::WebString& vfs_file_name,
-                                 bool sync_dir);
-  virtual long databaseGetFileAttributes(
-      const blink::WebString& vfs_file_name);
-  virtual long long databaseGetFileSize(const blink::WebString& vfs_file_name);
-  virtual long long databaseGetSpaceAvailableForOrigin(
-      const blink::WebString& origin_identifier);
-  virtual blink::WebString signedPublicKeyAndChallengeString(
-      unsigned key_size_index, const blink::WebString& challenge,
-      const blink::WebURL& url);
-  virtual size_t memoryUsageMB();
-  virtual size_t actualMemoryUsageMB();
-  virtual size_t physicalMemoryMB();
-  virtual size_t numberOfProcessors();
-
-  virtual void startHeapProfiling(const blink::WebString& prefix);
-  virtual void stopHeapProfiling() OVERRIDE;
-  virtual void dumpHeapProfiling(const blink::WebString& reason);
-  virtual blink::WebString getHeapProfile() OVERRIDE;
-
-  virtual bool processMemorySizesInBytes(size_t* private_bytes,
-                                         size_t* shared_bytes);
-  virtual bool memoryAllocatorWasteInBytes(size_t* size);
-  virtual size_t maxDecodedImageBytes() OVERRIDE;
-  virtual blink::WebURLLoader* createURLLoader();
-  virtual blink::WebSocketStreamHandle* createSocketStreamHandle();
-  virtual blink::WebString userAgent(const blink::WebURL& url);
-  virtual blink::WebData parseDataURL(
-      const blink::WebURL& url, blink::WebString& mimetype,
-      blink::WebString& charset);
-  virtual blink::WebURLError cancelledError(const blink::WebURL& url) const;
-  virtual void decrementStatsCounter(const char* name);
-  virtual void incrementStatsCounter(const char* name);
-  virtual void histogramCustomCounts(
-    const char* name, int sample, int min, int max, int bucket_count);
-  virtual void histogramEnumeration(
-    const char* name, int sample, int boundary_value);
-  virtual void histogramSparse(const char* name, int sample);
-  virtual const unsigned char* getTraceCategoryEnabledFlag(
-      const char* category_name);
-  virtual long* getTraceSamplingState(const unsigned thread_bucket);
-  virtual TraceEventHandle addTraceEvent(
-      char phase,
-      const unsigned char* category_group_enabled,
-      const char* name,
-      unsigned long long id,
-      int num_args,
-      const char** arg_names,
-      const unsigned char* arg_types,
-      const unsigned long long* arg_values,
-      unsigned char flags);
-  virtual void updateTraceEventDuration(
-      const unsigned char* category_group_enabled,
-      const char* name,
-      TraceEventHandle);
-  virtual blink::WebData loadResource(const char* name);
-  virtual blink::WebString queryLocalizedString(
-      blink::WebLocalizedString::Name name);
-  virtual blink::WebString queryLocalizedString(
-      blink::WebLocalizedString::Name name, int numeric_value);
-  virtual blink::WebString queryLocalizedString(
-      blink::WebLocalizedString::Name name, const blink::WebString& value);
-  virtual blink::WebString queryLocalizedString(
-      blink::WebLocalizedString::Name name,
-      const blink::WebString& value1, const blink::WebString& value2);
-  virtual void suddenTerminationChanged(bool enabled) { }
-  virtual double currentTime();
-  virtual double monotonicallyIncreasingTime();
-  virtual void cryptographicallyRandomValues(
-      unsigned char* buffer, size_t length);
-  virtual void setSharedTimerFiredFunction(void (*func)());
-  virtual void setSharedTimerFireInterval(double interval_seconds);
-  virtual void stopSharedTimer();
-  virtual void callOnMainThread(void (*func)(void*), void* context);
-
-
-  // Embedder functions. The following are not implemented by the glue layer and
-  // need to be specialized by the embedder.
-
-  // Gets a localized string given a message id.  Returns an empty string if the
-  // message id is not found.
-  virtual base::string16 GetLocalizedString(int message_id) = 0;
-
-  // Returns the raw data for a resource.  This resource must have been
-  // specified as BINDATA in the relevant .rc file.
-  virtual base::StringPiece GetDataResource(int resource_id,
-                                            ui::ScaleFactor scale_factor) = 0;
-
-  // Creates a ResourceLoaderBridge.
-  virtual webkit_glue::ResourceLoaderBridge* CreateResourceLoader(
-      const webkit_glue::ResourceLoaderBridge::RequestInfo& request_info) = 0;
-  // Creates a WebSocketStreamHandleBridge.
-  virtual WebSocketStreamHandleBridge* CreateWebSocketStreamBridge(
-      blink::WebSocketStreamHandle* handle,
-      WebSocketStreamHandleDelegate* delegate) = 0;
-
-  void SuspendSharedTimer();
-  void ResumeSharedTimer();
-  virtual void OnStartSharedTimer(base::TimeDelta delay) {}
-
- private:
-  void DoTimeout() {
-    if (shared_timer_func_ && !shared_timer_suspended_)
-      shared_timer_func_();
-  }
-
-  base::MessageLoop* main_loop_;
-  base::OneShotTimer<BlinkPlatformImpl> shared_timer_;
-  void (*shared_timer_func_)();
-  double shared_timer_fire_time_;
-  bool shared_timer_fire_time_was_set_while_suspended_;
-  int shared_timer_suspended_;  // counter
-};
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_