Split FaviconService and FaviconServiceImpl.

components/favicon/core/favicon_service_impl.cc

Index: components/favicon/core/favicon_service_impl.cc
diff --git a/components/favicon/core/favicon_service_impl.cc b/components/favicon/core/favicon_service_impl.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a57c99e9ce2f2f23032ad4049aa7653ccae49337
--- /dev/null
+++ b/components/favicon/core/favicon_service_impl.cc
@@ -0,0 +1,295 @@
+// 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.
+
+#include "components/favicon/core/favicon_service_impl.h"
+
+#include <stddef.h>
+#include <cmath>
+#include <utility>
+
+#include "base/hash.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
+#include "base/trace_event/trace_event.h"
+#include "components/favicon/core/favicon_client.h"
+#include "components/favicon_base/favicon_util.h"
+#include "components/favicon_base/select_favicon_frames.h"
+#include "components/history/core/browser/history_service.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/codec/png_codec.h"
+#include "ui/gfx/favicon_size.h"
+#include "ui/gfx/image/image_skia.h"
+#include "url/gurl.h"
+
+namespace favicon {
+namespace {
+
+// Returns a vector of pixel edge sizes from |size_in_dip| and
+// favicon_base::GetFaviconScales().
+std::vector<int> GetPixelSizesForFaviconScales(int size_in_dip) {
+  std::vector<float> scales = favicon_base::GetFaviconScales();
+  std::vector<int> sizes_in_pixel;
+  for (size_t i = 0; i < scales.size(); ++i) {
+    sizes_in_pixel.push_back(std::ceil(size_in_dip * scales[i]));
+  }
+  return sizes_in_pixel;
+}
+
+}  // namespace
+
+FaviconServiceImpl::FaviconServiceImpl(
+    std::unique_ptr<FaviconClient> favicon_client,
+    history::HistoryService* history_service)
+    : favicon_client_(std::move(favicon_client)),
+      history_service_(history_service) {
+  DCHECK(history_service_);
+}
+
+FaviconServiceImpl::~FaviconServiceImpl() {}
+
+base::CancelableTaskTracker::TaskId FaviconServiceImpl::GetFaviconImage(
+    const GURL& icon_url,
+    const favicon_base::FaviconImageCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetFaviconImage");
+  favicon_base::FaviconResultsCallback callback_runner =
+      base::Bind(&FaviconServiceImpl::RunFaviconImageCallbackWithBitmapResults,
+                 base::Unretained(this), callback, gfx::kFaviconSize);
+  std::vector<GURL> icon_urls;
+  icon_urls.push_back(icon_url);
+  return history_service_->GetFavicons(
+      icon_urls, favicon_base::FAVICON,
+      GetPixelSizesForFaviconScales(gfx::kFaviconSize), callback_runner,
+      tracker);
+}
+
+base::CancelableTaskTracker::TaskId FaviconServiceImpl::GetRawFavicon(
+    const GURL& icon_url,
+    favicon_base::IconType icon_type,
+    int desired_size_in_pixel,
+    const favicon_base::FaviconRawBitmapCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetRawFavicon");
+  favicon_base::FaviconResultsCallback callback_runner = base::Bind(
+      &FaviconServiceImpl::RunFaviconRawBitmapCallbackWithBitmapResults,
+      base::Unretained(this), callback, desired_size_in_pixel);
+
+  std::vector<GURL> icon_urls;
+  icon_urls.push_back(icon_url);
+  std::vector<int> desired_sizes_in_pixel;
+  desired_sizes_in_pixel.push_back(desired_size_in_pixel);
+
+  return history_service_->GetFavicons(
+      icon_urls, icon_type, desired_sizes_in_pixel, callback_runner, tracker);
+}
+
+base::CancelableTaskTracker::TaskId FaviconServiceImpl::GetFavicon(
+    const GURL& icon_url,
+    favicon_base::IconType icon_type,
+    int desired_size_in_dip,
+    const favicon_base::FaviconResultsCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetFavicon");
+  std::vector<GURL> icon_urls;
+  icon_urls.push_back(icon_url);
+  return history_service_->GetFavicons(
+      icon_urls, icon_type, GetPixelSizesForFaviconScales(desired_size_in_dip),
+      callback, tracker);
+}
+
+base::CancelableTaskTracker::TaskId
+FaviconServiceImpl::GetFaviconImageForPageURL(
+    const GURL& page_url,
+    const favicon_base::FaviconImageCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetFaviconImageForPageURL");
+  return GetFaviconForPageURLImpl(
+      page_url, favicon_base::FAVICON,
+      GetPixelSizesForFaviconScales(gfx::kFaviconSize),
+      base::Bind(&FaviconServiceImpl::RunFaviconImageCallbackWithBitmapResults,
+                 base::Unretained(this), callback, gfx::kFaviconSize),
+      tracker);
+}
+
+base::CancelableTaskTracker::TaskId FaviconServiceImpl::GetRawFaviconForPageURL(
+    const GURL& page_url,
+    int icon_types,
+    int desired_size_in_pixel,
+    const favicon_base::FaviconRawBitmapCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetRawFaviconForPageURL");
+  std::vector<int> desired_sizes_in_pixel;
+  desired_sizes_in_pixel.push_back(desired_size_in_pixel);
+  return GetFaviconForPageURLImpl(
+      page_url, icon_types, desired_sizes_in_pixel,
+      base::Bind(
+          &FaviconServiceImpl::RunFaviconRawBitmapCallbackWithBitmapResults,
+          base::Unretained(this), callback, desired_size_in_pixel),
+      tracker);
+}
+
+base::CancelableTaskTracker::TaskId
+FaviconServiceImpl::GetLargestRawFaviconForPageURL(
+    const GURL& page_url,
+    const std::vector<int>& icon_types,
+    int minimum_size_in_pixels,
+    const favicon_base::FaviconRawBitmapCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetLargestRawFaviconForPageURL");
+  favicon_base::FaviconResultsCallback favicon_results_callback = base::Bind(
+      &FaviconServiceImpl::RunFaviconRawBitmapCallbackWithBitmapResults,
+      base::Unretained(this), callback, 0);
+  if (favicon_client_ && favicon_client_->IsNativeApplicationURL(page_url)) {
+    std::vector<int> desired_sizes_in_pixel;
+    desired_sizes_in_pixel.push_back(0);
+    return favicon_client_->GetFaviconForNativeApplicationURL(
+        page_url, desired_sizes_in_pixel, favicon_results_callback, tracker);
+  }
+  return history_service_->GetLargestFaviconForURL(
+      page_url, icon_types, minimum_size_in_pixels, callback, tracker);
+}
+
+base::CancelableTaskTracker::TaskId FaviconServiceImpl::GetFaviconForPageURL(
+    const GURL& page_url,
+    int icon_types,
+    int desired_size_in_dip,
+    const favicon_base::FaviconResultsCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetFaviconForPageURL");
+  return GetFaviconForPageURLImpl(
+      page_url, icon_types, GetPixelSizesForFaviconScales(desired_size_in_dip),
+      callback, tracker);
+}
+
+base::CancelableTaskTracker::TaskId
+FaviconServiceImpl::UpdateFaviconMappingsAndFetch(
+    const GURL& page_url,
+    const std::vector<GURL>& icon_urls,
+    int icon_types,
+    int desired_size_in_dip,
+    const favicon_base::FaviconResultsCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  return history_service_->UpdateFaviconMappingsAndFetch(
+      page_url, icon_urls, icon_types,
+      GetPixelSizesForFaviconScales(desired_size_in_dip), callback, tracker);
+}
+
+base::CancelableTaskTracker::TaskId
+FaviconServiceImpl::GetLargestRawFaviconForID(
+    favicon_base::FaviconID favicon_id,
+    const favicon_base::FaviconRawBitmapCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  TRACE_EVENT0("browser", "FaviconServiceImpl::GetLargestRawFaviconForID");
+  // Use 0 as |desired_size| to get the largest bitmap for |favicon_id| without
+  // any resizing.
+  int desired_size = 0;
+  favicon_base::FaviconResultsCallback callback_runner = base::Bind(
+      &FaviconServiceImpl::RunFaviconRawBitmapCallbackWithBitmapResults,
+      base::Unretained(this), callback, desired_size);
+
+  return history_service_->GetFaviconForID(favicon_id, desired_size,
+                                           callback_runner, tracker);
+}
+
+void FaviconServiceImpl::SetFaviconOutOfDateForPage(const GURL& page_url) {
+  history_service_->SetFaviconsOutOfDateForPage(page_url);
+}
+
+void FaviconServiceImpl::SetImportedFavicons(
+    const favicon_base::FaviconUsageDataList& favicon_usage) {
+  history_service_->SetImportedFavicons(favicon_usage);
+}
+
+void FaviconServiceImpl::MergeFavicon(
+    const GURL& page_url,
+    const GURL& icon_url,
+    favicon_base::IconType icon_type,
+    scoped_refptr<base::RefCountedMemory> bitmap_data,
+    const gfx::Size& pixel_size) {
+  history_service_->MergeFavicon(page_url, icon_url, icon_type, bitmap_data,
+                                 pixel_size);
+}
+
+void FaviconServiceImpl::SetFavicons(const GURL& page_url,
+                                     const GURL& icon_url,
+                                     favicon_base::IconType icon_type,
+                                     const gfx::Image& image) {
+  gfx::ImageSkia image_skia = image.AsImageSkia();
+  image_skia.EnsureRepsForSupportedScales();
+  const std::vector<gfx::ImageSkiaRep>& image_reps = image_skia.image_reps();
+  std::vector<SkBitmap> bitmaps;
+  const std::vector<float> favicon_scales = favicon_base::GetFaviconScales();
+  for (size_t i = 0; i < image_reps.size(); ++i) {
+    // Don't save if the scale isn't one of supported favicon scales.
+    if (std::find(favicon_scales.begin(), favicon_scales.end(),
+                  image_reps[i].scale()) == favicon_scales.end()) {
+      continue;
+    }
+    bitmaps.push_back(image_reps[i].sk_bitmap());
+  }
+  history_service_->SetFavicons(page_url, icon_type, icon_url, bitmaps);
+}
+
+void FaviconServiceImpl::UnableToDownloadFavicon(const GURL& icon_url) {
+  MissingFaviconURLHash url_hash = base::Hash(icon_url.spec());
+  missing_favicon_urls_.insert(url_hash);
+}
+
+bool FaviconServiceImpl::WasUnableToDownloadFavicon(
+    const GURL& icon_url) const {
+  MissingFaviconURLHash url_hash = base::Hash(icon_url.spec());
+  return missing_favicon_urls_.find(url_hash) != missing_favicon_urls_.end();
+}
+
+void FaviconServiceImpl::ClearUnableToDownloadFavicons() {
+  missing_favicon_urls_.clear();
+}
+
+base::CancelableTaskTracker::TaskId
+FaviconServiceImpl::GetFaviconForPageURLImpl(
+    const GURL& page_url,
+    int icon_types,
+    const std::vector<int>& desired_sizes_in_pixel,
+    const favicon_base::FaviconResultsCallback& callback,
+    base::CancelableTaskTracker* tracker) {
+  if (favicon_client_ && favicon_client_->IsNativeApplicationURL(page_url)) {
+    return favicon_client_->GetFaviconForNativeApplicationURL(
+        page_url, desired_sizes_in_pixel, callback, tracker);
+  }
+  return history_service_->GetFaviconsForURL(
+      page_url, icon_types, desired_sizes_in_pixel, callback, tracker);
+}
+
+void FaviconServiceImpl::RunFaviconImageCallbackWithBitmapResults(
+    const favicon_base::FaviconImageCallback& callback,
+    int desired_size_in_dip,
+    const std::vector<favicon_base::FaviconRawBitmapResult>&
+        favicon_bitmap_results) {
+  TRACE_EVENT0("browser",
+               "FaviconServiceImpl::RunFaviconImageCallbackWithBitmapResults");
+  favicon_base::FaviconImageResult image_result;
+  image_result.image = favicon_base::SelectFaviconFramesFromPNGs(
+      favicon_bitmap_results, favicon_base::GetFaviconScales(),
+      desired_size_in_dip);
+  favicon_base::SetFaviconColorSpace(&image_result.image);
+
+  image_result.icon_url = image_result.image.IsEmpty()
+                              ? GURL()
+                              : favicon_bitmap_results[0].icon_url;
+  callback.Run(image_result);
+}
+
+void FaviconServiceImpl::RunFaviconRawBitmapCallbackWithBitmapResults(
+    const favicon_base::FaviconRawBitmapCallback& callback,
+    int desired_size_in_pixel,
+    const std::vector<favicon_base::FaviconRawBitmapResult>&
+        favicon_bitmap_results) {
+  TRACE_EVENT0(
+      "browser",
+      "FaviconServiceImpl::RunFaviconRawBitmapCallbackWithBitmapResults");
+  callback.Run(
+      ResizeFaviconBitmapResult(favicon_bitmap_results, desired_size_in_pixel));
+}
+
+}  // namespace favicon