Convert FrameMsg_ExtractSmartClipData to Mojo

Convert and merge FrameHostMsg_SmartClipDataExtracted now using Mojo
callback directly.

Bug: 786836
Change-Id: If2925e9e019854558f8c97cf51e6b0d32b521345
Reviewed-on: https://chromium-review.googlesource.com/804804Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Will Harris <wfh@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#524017}

content/browser/frame_host/render_frame_host_impl.cc

@@ -899,8 +899,6 @@ bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
                         OnJavaScriptExecuteResponse)
     IPC_MESSAGE_HANDLER(FrameHostMsg_VisualStateResponse,
                         OnVisualStateResponse)
-    IPC_MESSAGE_HANDLER(FrameHostMsg_SmartClipDataExtracted,
-                        OnSmartClipDataExtracted)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunJavaScriptDialog,
                                     OnRunJavaScriptDialog)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunBeforeUnloadConfirm,
@@ -1935,11 +1933,17 @@ void RenderFrameHostImpl::OnRenderProcessGone(int status, int exit_code) {
   for (const auto& iter : ax_tree_snapshot_callbacks_)
     iter.second.Run(ui::AXTreeUpdate());
 
-  for (const auto& iter : smart_clip_callbacks_)
-    iter.second.Run(base::string16(), base::string16());
+#if defined(OS_ANDROID)
+  // Execute any pending Samsung smart clip callbacks.
+  for (base::IDMap<std::unique_ptr<ExtractSmartClipDataCallback>>::iterator
+           iter(&smart_clip_callbacks_);
+       !iter.IsAtEnd(); iter.Advance()) {
+    std::move(*iter.GetCurrentValue()).Run(base::string16(), base::string16());
+  }
+  smart_clip_callbacks_.Clear();
+#endif  // defined(OS_ANDROID)
 
   ax_tree_snapshot_callbacks_.clear();
-  smart_clip_callbacks_.clear();
   javascript_callbacks_.clear();
   visual_state_callbacks_.clear();
 
@@ -2046,25 +2050,24 @@ void RenderFrameHostImpl::OnJavaScriptExecuteResponse(
   }
 }
 
-void RenderFrameHostImpl::RequestSmartClipExtract(SmartClipCallback callback,
-                                                  gfx::Rect rect) {
-  static uint32_t next_id = 1;
-  uint32_t key = next_id++;
-  Send(new FrameMsg_ExtractSmartClipData(routing_id_, key, rect));
-  smart_clip_callbacks_.insert(std::make_pair(key, callback));
-}
-
-void RenderFrameHostImpl::OnSmartClipDataExtracted(uint32_t id,
-                                                   base::string16 text,
-                                                   base::string16 html) {
-  auto it = smart_clip_callbacks_.find(id);
-  if (it != smart_clip_callbacks_.end()) {
-    it->second.Run(text, html);
-    smart_clip_callbacks_.erase(it);
-  } else {
-    NOTREACHED() << "Received smartclip data response for unknown request";
-  }
+#if defined(OS_ANDROID)
+void RenderFrameHostImpl::RequestSmartClipExtract(
+    ExtractSmartClipDataCallback callback,
+    gfx::Rect rect) {
+  int32_t callback_id = smart_clip_callbacks_.Add(
+      std::make_unique<ExtractSmartClipDataCallback>(std::move(callback)));
+  frame_->ExtractSmartClipData(
+      rect, base::BindOnce(&RenderFrameHostImpl::OnSmartClipDataExtracted,
+                           base::Unretained(this), callback_id));
+}
+
+void RenderFrameHostImpl::OnSmartClipDataExtracted(int32_t callback_id,
+                                                   const base::string16& text,
+                                                   const base::string16& html) {
+  std::move(*smart_clip_callbacks_.Lookup(callback_id)).Run(text, html);
+  smart_clip_callbacks_.Remove(callback_id);
 }
+#endif  // defined(OS_ANDROID)
 
 void RenderFrameHostImpl::OnVisualStateResponse(uint64_t id) {
   auto it = visual_state_callbacks_.find(id);

content/browser/frame_host/render_frame_host_impl.h

@@ -18,6 +18,7 @@
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
+#include "base/containers/id_map.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ -146,8 +147,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
   using AXTreeSnapshotCallback =
       base::Callback<void(
           const ui::AXTreeUpdate&)>;
-  using SmartClipCallback = base::Callback<void(const base::string16& text,
-                                                const base::string16& html)>;
 
   // An accessibility reset is only allowed to prevent very rare corner cases
   // or race conditions where the browser and renderer get out of sync. If
@@ -502,8 +501,18 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // renderer process to change the accessibility mode.
   void UpdateAccessibilityMode();
 
+#if defined(OS_ANDROID)
   // Samsung Galaxy Note-specific "smart clip" stylus text getter.
-  void RequestSmartClipExtract(SmartClipCallback callback, gfx::Rect rect);
+  using ExtractSmartClipDataCallback =
+      base::OnceCallback<void(const base::string16&, const base::string16&)>;
+
+  void RequestSmartClipExtract(ExtractSmartClipDataCallback callback,
+                               gfx::Rect rect);
+
+  void OnSmartClipDataExtracted(int32_t callback_id,
+                                const base::string16& text,
+                                const base::string16& html);
+#endif  // defined(OS_ANDROID)
 
   // Request a one-time snapshot of the accessibility tree without changing
   // the accessibility mode.
@@ -832,9 +841,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
   void OnAccessibilitySnapshotResponse(
       int callback_id,
       const AXContentTreeUpdate& snapshot);
-  void OnSmartClipDataExtracted(uint32_t id,
-                                base::string16 text,
-                                base::string16 html);
   void OnToggleFullscreen(bool enter_fullscreen);
   void OnSuddenTerminationDisablerChanged(
       bool present,
@@ -1250,7 +1256,10 @@ class CONTENT_EXPORT RenderFrameHostImpl
   std::map<int, AXTreeSnapshotCallback> ax_tree_snapshot_callbacks_;
 
   // Samsung Galaxy Note-specific "smart clip" stylus text getter.
-  std::map<uint32_t, SmartClipCallback> smart_clip_callbacks_;
+#if defined(OS_ANDROID)
+  base::IDMap<std::unique_ptr<ExtractSmartClipDataCallback>>
+      smart_clip_callbacks_;
+#endif  // defined(OS_ANDROID)
 
   // Callback when an event is received, for testing.
   base::Callback<void(RenderFrameHostImpl*, ui::AXEvent, int)>

content/browser/web_contents/web_contents_android.cc

@@ -5,6 +5,8 @@
 #include "content/browser/web_contents/web_contents_android.h"
 
 #include <stdint.h>
+#include <string>
+#include <vector>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ -27,6 +29,7 @@
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/browser/web_contents/web_contents_view_android.h"
 #include "content/common/devtools_messages.h"
+#include "content/common/frame.mojom.h"
 #include "content/common/frame_messages.h"
 #include "content/common/input_messages.h"
 #include "content/common/view_messages.h"
@@ -558,11 +561,9 @@ void WebContentsAndroid::RequestSmartClipExtract(
   ScopedJavaGlobalRef<jobject> j_callback;
   j_callback.Reset(env, callback);
 
-  RenderFrameHostImpl::SmartClipCallback smart_clip_callback =
-      base::Bind(&SmartClipCallback, j_callback);
-
   web_contents_->GetMainFrame()->RequestSmartClipExtract(
-      smart_clip_callback, gfx::Rect(x, y, width, height));
+      base::BindOnce(&SmartClipCallback, j_callback),
+      gfx::Rect(x, y, width, height));
 }
 
 void WebContentsAndroid::RequestAccessibilitySnapshot(

content/common/frame.mojom

@@ -10,12 +10,14 @@ import "content/public/common/resource_type.mojom";
 import "content/public/common/url_loader.mojom";
 import "content/public/common/window_container_type.mojom";
 import "mojo/common/unguessable_token.mojom";
+import "mojo/common/string16.mojom";
 import "services/service_manager/public/interfaces/interface_provider.mojom";
 import "third_party/WebKit/common/feature_policy/feature_policy.mojom";
 import "third_party/WebKit/public/platform/referrer.mojom";
 import "third_party/WebKit/public/web/window_features.mojom";
 import "ui/base/mojo/window_open_disposition.mojom";
 import "url/mojo/url.mojom";
+import "ui/gfx/geometry/mojo/geometry.mojom";
 
 // The name of the InterfaceProviderSpec in service manifests used by the
 // frame tree to expose frame-specific interfaces between renderer and browser.
@@ -25,6 +27,12 @@ const string kNavigation_FrameSpec = "navigation:frame";
 interface Frame {
   GetInterfaceProvider(service_manager.mojom.InterfaceProvider& interfaces);
   GetCanonicalUrlForSharing() => (url.mojom.Url? canonical_url);
+
+  // Samsung Galaxy Note-specific "smart clip" stylus text getter.
+  // Extracts the data at the given rect.
+  // TODO(crbug.com/676224): Only enable for OS_ANDROID.
+  ExtractSmartClipData(gfx.mojom.Rect rect)
+      => (mojo.common.mojom.String16 text, mojo.common.mojom.String16 html);
 };
 
 // See src/content/common/navigation_params.h

content/common/frame_messages.h

@@ -834,12 +834,6 @@ IPC_MESSAGE_ROUTED0(FrameMsg_DeleteProxy)
 IPC_MESSAGE_ROUTED1(FrameMsg_TextSurroundingSelectionRequest,
                     uint32_t /* max_length */)
 
-// Extracts the data at the given rect, returning it through the
-// SmartClipDataExtracted IPC.
-IPC_MESSAGE_ROUTED2(FrameMsg_ExtractSmartClipData,
-                    uint32_t /* id */,
-                    gfx::Rect /* rect */)
-
 // Change the accessibility mode in the renderer process.
 IPC_MESSAGE_ROUTED1(FrameMsg_SetAccessibilityMode, ui::AXMode)
 
@@ -1554,12 +1548,6 @@ IPC_MESSAGE_ROUTED0(FrameHostMsg_AbortNavigation)
 // The message is delivered using RenderWidget::QueueMessage.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_VisualStateResponse, uint64_t /* id */)
 
-// Reply to the ExtractSmartClipData message.
-IPC_MESSAGE_ROUTED3(FrameHostMsg_SmartClipDataExtracted,
-                    uint32_t /* id */,
-                    base::string16 /* text */,
-                    base::string16 /* html */)
-
 // Puts the browser into "tab fullscreen" mode for the sending renderer.
 // See the comment in chrome/browser/ui/browser.h for more details.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ToggleFullscreen, bool /* enter_fullscreen */)

content/renderer/render_frame_impl.cc

@@ -1777,7 +1777,6 @@ bool RenderFrameImpl::OnMessageReceived(const IPC::Message& msg) {
                         OnSetAccessibilityMode)
     IPC_MESSAGE_HANDLER(AccessibilityMsg_SnapshotTree,
                         OnSnapshotAccessibilityTree)
-    IPC_MESSAGE_HANDLER(FrameMsg_ExtractSmartClipData, OnExtractSmartClipData)
     IPC_MESSAGE_HANDLER(FrameMsg_UpdateOpener, OnUpdateOpener)
     IPC_MESSAGE_HANDLER(FrameMsg_DidUpdateFramePolicy, OnDidUpdateFramePolicy)
     IPC_MESSAGE_HANDLER(FrameMsg_SetFrameOwnerProperties,
@@ -2407,13 +2406,15 @@ void RenderFrameImpl::OnSnapshotAccessibilityTree(int callback_id) {
       routing_id_, callback_id, response));
 }
 
-void RenderFrameImpl::OnExtractSmartClipData(uint32_t id,
-                                             const gfx::Rect& rect) {
+void RenderFrameImpl::ExtractSmartClipData(
+    const gfx::Rect& rect,
+    ExtractSmartClipDataCallback callback) {
+#if defined(OS_ANDROID)
   blink::WebString clip_text;
   blink::WebString clip_html;
   GetWebFrame()->ExtractSmartClipData(rect, clip_text, clip_html);
-  Send(new FrameHostMsg_SmartClipDataExtracted(
-      routing_id_, id, clip_text.Utf16(), clip_html.Utf16()));
+  std::move(callback).Run(clip_text.Utf16(), clip_html.Utf16());
+#endif  // defined(OS_ANDROID)
 }
 
 void RenderFrameImpl::OnUpdateOpener(int opener_routing_id) {

content/renderer/render_frame_impl.h

@@ -515,6 +515,9 @@ class CONTENT_EXPORT RenderFrameImpl
       service_manager::mojom::InterfaceProviderRequest request) override;
   void GetCanonicalUrlForSharing(
       GetCanonicalUrlForSharingCallback callback) override;
+  void ExtractSmartClipData(
+      const gfx::Rect& rect,
+      const ExtractSmartClipDataCallback callback) override;
 
   // mojom::FrameBindingsControl implementation:
   void AllowBindings(int32_t enabled_bindings_flags) override;
@@ -1028,7 +1031,6 @@ class CONTENT_EXPORT RenderFrameImpl
   void OnTextSurroundingSelectionRequest(uint32_t max_length);
   void OnSetAccessibilityMode(ui::AXMode new_mode);
   void OnSnapshotAccessibilityTree(int callback_id);
-  void OnExtractSmartClipData(uint32_t callback_id, const gfx::Rect& rect);
   void OnUpdateOpener(int opener_routing_id);
   void OnDidUpdateFramePolicy(const blink::FramePolicy& frame_policy);
   void OnSetFrameOwnerProperties(