Move iOS ImageFetcher to ios/web/public

ios/chrome/browser/suggestions/image_fetcher_impl.mm

Index: ios/chrome/browser/suggestions/image_fetcher_impl.mm
diff --git a/ios/chrome/browser/suggestions/image_fetcher_impl.mm b/ios/chrome/browser/suggestions/image_fetcher_impl.mm
index 70d93428d5d597d3fdd4bb2fe9b7ddd5c812bc81..47b1f946ae63a3266f7003db92aa3f2994d9eab4 100644
--- a/ios/chrome/browser/suggestions/image_fetcher_impl.mm
+++ b/ios/chrome/browser/suggestions/image_fetcher_impl.mm
@@ -8,7 +8,7 @@
 
 #include "base/threading/sequenced_worker_pool.h"
 #include "components/image_fetcher/image_fetcher_delegate.h"
-#include "ios/chrome/browser/net/image_fetcher.h"
+#include "components/image_fetcher/ios/raw_image_fetcher.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "skia/ext/skia_utils_ios.h"
 #include "ui/gfx/image/image.h"
@@ -18,7 +18,7 @@ namespace suggestions {
 ImageFetcherImpl::ImageFetcherImpl(
     net::URLRequestContextGetter* url_request_context,
     base::SequencedWorkerPool* blocking_pool) {
-  imageFetcher_.reset(new ::ImageFetcher(blocking_pool));
+  imageFetcher_.reset(new image_fetcher::RawImageFetcher(blocking_pool));

[sdefresne, 2016/11/23 14:40:33]

Can you use base::MakeUnique<> here?

ImageFetcherImpl::ImageFetcherImpl(
    net::URLRequestContextGetter* url_request_context,
    base::SequencedWorkerPool* blocking_pool)
    : imageFetcher_(
          base::MakeUnique<image_fetcher::RawImageFetcher>(blocking_pool)) {

[gambard, 2016/11/23 15:01:21]

Done.

   imageFetcher_->SetRequestContextGetter(url_request_context);
 }
 
@@ -52,26 +52,26 @@ void ImageFetcherImpl::StartOrQueueNetworkRequest(
   }
   // Copy string reference so it's retained.
   const std::string fetch_id(id);
-  ImageFetchedCallback fetcher_callback =
+  image_fetcher::ImageFetchedCallback fetcher_callback =
       ^(const GURL& original_url, int response_code, NSData* data) {
-      if (data) {
-        // Most likely always returns 1x images.
-        UIImage* ui_image = [UIImage imageWithData:data scale:1];
-        if (ui_image) {
-          gfx::Image gfx_image(ui_image);
-          callback.Run(fetch_id, gfx_image);
-          if (delegate_) {
-            delegate_->OnImageFetched(fetch_id, gfx_image);
+        if (data) {
+          // Most likely always returns 1x images.
+          UIImage* ui_image = [UIImage imageWithData:data scale:1];
+          if (ui_image) {
+            gfx::Image gfx_image(ui_image);
+            callback.Run(fetch_id, gfx_image);
+            if (delegate_) {
+              delegate_->OnImageFetched(fetch_id, gfx_image);
+            }
+            return;
           }
-          return;
         }
-      }
-      gfx::Image empty_image;
-      callback.Run(fetch_id, empty_image);
-      if (delegate_) {
-        delegate_->OnImageFetched(fetch_id, empty_image);
-      }
-  };
+        gfx::Image empty_image;
+        callback.Run(fetch_id, empty_image);
+        if (delegate_) {
+          delegate_->OnImageFetched(fetch_id, empty_image);
+        }
+      };
   imageFetcher_->StartDownload(image_url, fetcher_callback);
 }