Android: Remove some devtools code from the build.

chrome/browser/devtools/devtools_targets_ui.cc

Index: chrome/browser/devtools/devtools_targets_ui.cc
diff --git a/chrome/browser/devtools/devtools_targets_ui.cc b/chrome/browser/devtools/devtools_targets_ui.cc
index 6dc03f6e6f06636736a231f528ae6c2e2b75a3bb..d608c5caa1d7e29fd744f6697e2d743786886514 100644
--- a/chrome/browser/devtools/devtools_targets_ui.cc
+++ b/chrome/browser/devtools/devtools_targets_ui.cc
@@ -66,10 +66,10 @@ std::string SerializeBrowserId(
     scoped_refptr<DevToolsAndroidBridge::RemoteBrowser> browser) {
   return base::StringPrintf(
       "browser:%s:%s:%s:%s",
-      browser->serial().c_str(), // Ensure uniqueness across devices.
+      browser->serial().c_str(),        // Ensure uniqueness across devices.
       browser->display_name().c_str(),  // Sort by display name.
-      browser->version().c_str(),  // Then by version.
-      browser->socket().c_str());  // Ensure uniqueness on the device.
+      browser->version().c_str(),       // Then by version.
+      browser->socket().c_str());       // Ensure uniqueness on the device.
 }
 
 // CancelableTimer ------------------------------------------------------------
@@ -171,11 +171,11 @@ class LocalTargetsUIHandler
   // DevToolsTargetsUIHandler overrides.
   void ForceUpdate() override;
 
-private:
+ private:
   // content::NotificationObserver overrides.
- void Observe(int type,
-              const content::NotificationSource& source,
-              const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
   void ScheduleUpdate();
   void UpdateTargets();
@@ -419,7 +419,7 @@ void AdbTargetsUIHandler::DeviceListChanged(
   SendSerializedTargets(device_list);
 }
 
-} // namespace
+}  // namespace
 
 // DevToolsTargetsUIHandler ---------------------------------------------------
 
@@ -491,6 +491,7 @@ void DevToolsTargetsUIHandler::SendSerializedTargets(
 void DevToolsTargetsUIHandler::ForceUpdate() {
 }
 
+#if !defined(OS_ANDROID) && !defined(OS_IOS)
 // PortForwardingStatusSerializer ---------------------------------------------
 
 PortForwardingStatusSerializer::PortForwardingStatusSerializer(
@@ -535,3 +536,4 @@ void PortForwardingStatusSerializer::PortStatusChanged(
   }
   callback_.Run(result);
 }
+#endif  // !defined(OS_ANDROID) && !defined(OS_IOS)